Comcast Puts the Screws To HDTV 317
Todd Spangler writes "Comcast, like every video distributor, compresses its digital video signals. But to fit in more HDTV channels, Comcast is squeezing some signals more than others. The cable operator claims it is using improved compression techniques, so that most subscribers won't see any drop-off in picture quality. But A/V buff Ken Fowler claims the differences between some of Comcast's more highly compressed channels and Verizon's FiOS TV are indeed noticeable. He's posted his comparative test results on AVSForum.com — and the results are not pretty."
The Comcast guy whas at my house yesterday! (Score:2, Interesting)
But my dad said we were thinking about canceling our Comcast cable and getting FiOS, then the Comcast guy, noticing our spiffy new HDTV, starting going on and on about how we would have like 50 new "HD" channels by the end of the year, all at MUCH better quality.
Yea right! What a LIE that Comcast guy was saying! I told him
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Re:The Comcast guy whas at my house yesterday! (Score:4, Insightful)
Just because the person you are speaking to is dumb as a box of rocks, don't assume that they are not just the mouthpiece for someone smarter that is intentionally trying to deceive you.
Screws to HDTV? Not exactly (Score:5, Informative)
No thanks. I'll stick with my Yagi antenna which pulls in 15 stations (many with subchannels) from 30 miles away. (Though I'm quite tempted to try a Gray-Hoverman Antenna as detailed here on Slashdot, just to see if it's better. http://hardware.slashdot.org/article.pl?sid=08/03/14/2021223 [slashdot.org] )
Re:Screws to HDTV? Not exactly (Score:4, Interesting)
Re:Screws to HDTV? Not exactly (Score:4, Interesting)
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Unfortunately my DVD player doesn't do XVid, though most new players appear to. They're also a fraction of the price I paid several years ago - getting almost cheap
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Re:Screws to HDTV? Not exactly (Score:4, Interesting)
Re:Screws to HDTV? Not exactly (Score:5, Insightful)
And for your information, I have provided city-wide Internet, TV and phone service before. No, not millions, but Comcast doesn't operate at that level either, if you had any clue as to how they actually operate. Most of their services operate sub-regionally, in loosely grouped clusters of service areas. They are moving in the direction of combining their service zones, which according to anyone familiar with basic economic theory would understand should decrease their cost of service, meaning more money in their coffers which should enable them to perform service upgrades mentioned by myself and others.
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=Smidge=
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Comcast has been compressing the Hd channels hard for years. They are finally compressing it so hard that common people are noticing it.
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Re:Screws to HDTV? Not exactly (Score:5, Insightful)
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Otherwise, if I recall correctly, they have to send it as they get it. This specifically applies to those are being transmitted via "Must Carry" and have not forgone that right in lieu of a retrans agreement.
Though I'm not up to speed on my FCC regs as I used to be... so some things may have changed.
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I wouldn't worry about it, after all those coat hangers beat the pants off of Monster Cable
OTA much better than Comcast (Score:5, Informative)
Still, it would be nice as a consumer to know what I'm really getting. Maybe Comcast (and anyone else) should be required to label their channels as "compressed HDTV".
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Just dropped Comcast (Score:2)
For reference, my cable bill was $112 a month for one HD and one standard converter box, extended basic channels, and HBO. I'm using simple rabbit ears now, but I'm looking for a better antenna since a
In conclusion (Score:4, Funny)
Comcast's HD: (Score:2)
Not suprising at all (Score:5, Interesting)
Here's the thing: Coax cable networks, even hybrid fiber/coax cable networks, just don't have the bandwidth to handle very many HD channels without compressing the hell out of them. They just don't. It's not going to improve. The ONLY thing they can do is either drastically reduce the number of digital and HD channels they offer their subscribers, or bite the bullet and start massively upgrading their network. Basically, they need to run fiber to every home. Which they aren't going to do.
This is why I laugh at people who buy HDTVs and expect some kind of massive improvement. In most of the country, the infrastructure just isn't there to give people very many full-res HD channels over cable. Digital satellite has many of the same issues. There just isn't enough bandwidth.
What about OTA, you say? Yeah, OTA broadcasts only have to be *digital*, not HD.
Re:Not suprising at all (Score:5, Interesting)
Ridiculous.
Re:Not suprising at all (Score:5, Insightful)
Of course, then they'd have to discard their outmoded business model. So that won't happen. They'll just be marginalised and discarded in favour of internet distribution. It's the same thing that's happening to newspapers and bookstores - still around, but becoming less relevant every year.
Cue their attempts to get laws passed to ban the new competition...
Re:Not suprising at all (Score:5, Informative)
Re:Not suprising at all (Score:4, Informative)
As a side-note, I had forgotten how great Sweden was in regards to technology. I now have a 100MBit bi-directional internet connection with no download limits, and I'm paying $65 a month for it. Then, I have a 7,2MBit 3G modem for my laptop, again no download limit, price is $30 a month, and it works quite well. Went on a 3,5h drive to my parents and was able to stream internet radio in the car the whole way. Laptop + 3G modem + FM transmitter is the way to go
Re:Not suprising at all (Score:5, Insightful)
I honestly don't know much about Sweden (despite a few visits), but I think it is safe to assume your telecommunications providers are nowhere near as enormous, corrupt and heavy-handed as American ones. There is no competition at all in North America, everyone just gouges like mad, and when an independent tries to push out better services and/or lower prices, they get sued into oblivion or often times bought out and destroyed.
If there were some form of harsh punishment for such blatant abuse of the capitalist system, maybe things would be better for everyone here, but the people drafting the rules are on the receiving end of significant lobbying from the telecoms, so it won't happen anytime soon.
Re:Not suprising at all (Score:5, Insightful)
This stupid dickering over population density and whatall manages to totally miss the point. In the U.S. there IS NO FREE MARKET for telco. Not even close. In which case, inertia is the biggest culprit, which explains why a very significant minority of the populous STILL can't get anything better (bandwidth/latency-wise) than freakin' dialup. The 'last-mile' problem exists for the same reason. When there is one telephone company and one cable company in town (in some cases they are one and the same), there is absolutely NO reason why that company would roll out last-mile fiber. The CEOs of those companies would be flogged by the shareholders for even suggesting what would be perceived as an unnecessary and costly venture. It is a chicken-and-egg scenario for a lot of companies. For the majority of internet users, anything beyond bare-bones 1024/256 DSL is really not necessary. People would likely find a use for it if it existed, but don't demand the upgrade in infrastructure because it is a white elephant ATM.
For example, I live 18 miles from the nearest town, and get 1024/256 DSL by pure accident because I live on a well-traveled highway. Us lucky folks get to watch streaming video without hiccups. Our modem-bound neighbors a mile to the north have no such luxury.
Re:Not suprising at all (Score:4, Insightful)
I would argue that free market isn't the only solution. In fact, pretty much any system other than the one we have now would be better for ISP's in the USA.
For instance, free market might solve some of the problems, except that the established companies already own the cable. A startup can't put in cable without negotiating with the town and without a huge startup capital investment. In this situation, a socialized internet provider would work, too, like water. Buy your internet from the government, which runs a nominally third party entity that handles the technology but that has service requirements and price caps.
Honestly, the fact that right now we have a government-granted monopoly, and that it's essentially unregulated, is what's causing the problems.
~X
Re:Not suprising at all (Score:5, Interesting)
Re:Not suprising at all (Score:5, Interesting)
Speaking as someone who has lived in NYC for the past nine years and lived in five different apartments so far: You would not believe how poorly patched together New York City is unless you are reading this from a former soviet-block country. From the subway to apartment repairs to the roads to phone and cable infrastructure, NYC is a collection of barely good enough, cheapest, fastest repairs and hacks. NYC hasn't been able to even put in a new subway line since 1919 [wikipedia.org] and you think we should be able to roll out fiber to any but the most expensive apartments? In Stockholm you may be able to convince landlords to actually do things like put in new pipes or electric wiring and to add fiber while they are at it. Here in Manhattan, my water comes out of the faucet rust brown and I only have electrical outlets on two walls of my apartment. Landlords do the least amount they can legally get away with, as there is always someone who will step in a rent the apartment as is. (The vacancy rate here is below 1%) I would expect fiber to be run to most of the surrounding commuter towns well before it becomes common in households actually in the city. Seriously the infrastructure here is FUBAR
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Digital is generally a huge improvement for OTA, even if they split an old NTSC channel into four SD ATSC channels.
Also, most prime time stuff is in HD, so the time when most typical people are most likely to be watching TV, it's usually in HD, though it looks like FOX is still sticking to 480p.
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Now this is not in response to the parent but to the topic in general... Cable could offer far more picture quality by simply eliminating their analog lineup and using the bandwidth for digital. Using 256QAM modulation
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Why not? Oh yeah, monopolies... forgot. Isn't "progress" wonderful? You get to bill the consumer more for a whole new technology and yet fail to provide it. And you won't even get sued for it. HDTV - TV for the Highly Dense consumer.
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They could also cut back the number of analog channels they're supporting. Each one frees up a digital QAM channel, which can house two 19 Mbit MPEG-2 HD channels, which matches OTA quality. Unfortunately, the all-digital mandate for 2009 only applies to OTA, and not to cable systems, most of whom will continue to supp
Re:Not suprising at all (Score:5, Informative)
The compression essentially scales dynamically with popularity.
So, you might have the home and garden channel, but if it isn't getting viewers it's getting it's compression slammed. SCI-Fi, in my old area, was awful on Saturday evening. I fiddled with my mythbox forever wondering why it was just so horrible and then caught it live one evening.
That said, once motorola releases an H264 based unit and not an mpeg2 receiver... there will be plenty of bandwidth. Well, assuming the rush to fill their service with tier 3 HD channels doesn't ruin it. This is all contingent on fast, affordable h264 decoding chips and I really haven't seen a good deal yet.
My big beef with FiOS is just wondering when the bait and switch will happen. I hear great things about it now, but I'm just wondering when they will turn to the cheap. Any FiOS guys want to tell us the diabolical plans in store? (I'll take made up ones too)
Comcast ... phooey. (Score:2)
Comcast sucks balls & hates netflix (Score:4, Interesting)
I don't have the wherewithall to prove it, but I am pretty sure that they are throttling netflix watch-it-now services. When netflix first released that service my downloads were speedy and ran great. Now that netflix is starting to offer some real titles comcast is throttling them, I'm sure of it. Case in point, I've been very sick this week and in bed a lot. I've turned to netflix for entertainment. I can watch my first episode with no problem, 2nd, a few minutes of buffer but no big deal. Now that I have been using it for a day or two it can take 20 minutes to start a show with several buffer sessions in the middle.
Contrast this with the fact that I can take my laptop to school on a SLOWER connection and get uninterrupted downloads. Their legalized monopoly they have is complete bullshit. If somebody offered another service in my area you can bet I would be there tomorrow. I despise writing that check every month to those fuckers. I hope they get what's coming to them in the form of a class action law suit to the tune of billions.
If they really want more bandwidth.... (Score:3, Interesting)
Re:If they really want more bandwidth.... (Score:4, Insightful)
Have you seen the size of the spam? (Score:2)
*sigh* (Score:2)
I see this all the time. (Score:3, Interesting)
Is *this* HD? DO NOT WANT! (Score:5, Insightful)
But what I find the most frightening is looking at the pictures in the article I quoted, and then realising that "These images were rescaled to half-resolution". Imagine how coarse they must look at twice the size if a downscaling doesn't produce anything more smooth than that.
I'm starting to rediscover my love for that ~15 year old 14" CRT thing I have in my room.
Comcast sucked already (Score:2)
what does this mean for 1080? (Score:3, Insightful)
I wonder why bother with 1080 sets if they're doing this. The difference in quality seems quite dramatic. I would guess that while you have a choice between 720 and 1080, it's hardly worth extra $$ for the 1080. Just curious if this would seem true to others.
Re:what does this mean for 1080? (Score:5, Informative)
FiOS (Score:4, Informative)
Should redefine "HD" (Score:4, Insightful)
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HDTV specs should define a bit rate that has to be required to have HD.
I could be way off base here, but I just don't think that's possible given the compression algorithms that are used. The whole point of variable bit-rate compression is to use lower bit rates when you need to convey less information, and higher bit rates when you need to convey more (thus why action scenes can get so blocky). Defining a minimum bit-rate would be like saying, "You can only be so efficient." What if i want to transmit 1920 x 1080 pixels of pure black? I have to do it at a minimum of 2 Mbps?
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Compare the compressed screen to the origonal source pixels and count the number and size of the defects. The final score or % can then be compared amongst any feeds.
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Maybe we could have a few classifications:
HD Bronze - Barely passes some maximum average quantizer check
HD Silver - The
FIOS testimonial (Score:5, Interesting)
As a former Comcast customer, what can I tell you but keep checking.
When FIOS reached my block, I called Verizon the next day. The install went smoothly and all the contacts I've had with Verizon have been great.
I'm done with those thieves at Comcast.
Internet is unbelievable, I shelled out extra money for higher speed. Downloading a distro used to be an overnight undertaking. Now it's more like 20 minutes.
I got a bunch of new phone features I don't need and the TV signal quality is great.
Best part is I'm paying a little less than I used to pay Comcast for TV and internet but
I'm getting TV, Internet, phone and long distance with the price locked in for 2 years.
I'm still waiting for my free 19inch LCD TV from Verizon, but to make up for the delay they sent me a $20 gift certificate.
A Temporary Situation? (Score:2)
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For those unfamiliar with Switched Digital Video: http://en.wikipedia.org/wiki/Switched_video [wikipedia.org]
For the sake of disclosure, I work at Comcast, but I am very, very low level.
Dropping analog (Score:2)
For every analog channel they drop, they gain back 2 decent or 3 crappy HD channels. Or maybe they could do 2 half-way decent HD and 1 SD channel. And, yes, there is a requirement to provide analog until 2012. But they can meet that requirement by supplying a converter box that outputs analog (at no additional cost for basic customers). The question is, is the cost of providing that converter box greater than the benefit of the extra channels?
My only question... (Score:2)
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FiOS TV hardware? (Score:2)
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On the non-HD box I get S-Video, composite and RF (channel 3) output. There is L-R audio and digital as well.
On the free box provided in anticipation of them turning all analog support off this month you get RF, S-Video, composite and L-R audio.
Good package of options. Since they don't support A
Please fix the headline (Score:5, Funny)
Please fix the headline by dropping "Puts the" and "To" from the sentence.
Thank you.
WTF.....? (Score:2)
I smell a very big lawsuit coming on.
This is like paying for 92 octane gasoline, but having it cut with diesel when you put in in your tank, so as to make the station's reserves of gasoline last longer.
least possible bandwidth (Score:2, Insightful)
I've noticed compression artifacts... (Score:3, Interesting)
When the installer came for this new house, I mentioned that I was only getting digital for the purposes of HDTV, and that otherwise I liked analog better. It was rather entertaining listening to him explain that digital only needs ONE bandwidth, while analog needs FOUR bandwidths.
None of this is nearly as annoying as their execrable channel guide, which dedicates a third of the screne to some random bullshit preview and a third to advertising. And often takes ~10 seconds to flip to the next screen. And if you want to search by name... my god. To get to the middle of the alphabet, it's ~20 key presses (they make you go through the numerals if you try to go backwards). It's one of the worst interfaces I've ever seen-- and I have seen some shit.
But never mind all that; I've seen MythTV in action and I will soon be cured.
Too bad FIOS is shooting itself in the foot (Score:2)
The FCC should set quality standards... (Score:4, Interesting)
Let the marketplace decide, but make sure that consumers know what they are actually buying.
Nothing particularly new about this sort of thing (Score:3, Insightful)
Are we surprised that Comcast is down-rezzing HD video? Were we surprised to discover they're throttling BitTorrent? Not if you've ever had to use their service. You take what they give you, and if it fails catastrophically, then you might be able to find someone to get the service restored -- but complaining that the performance of a thing isn't what it's supposed to be? You'd be lucky if you found someone that had any idea what you were even talking about...
Free-to-air. (Score:3, Interesting)
The highest quality HD I've seen to date has come via over-the-air signals; the good old antenna. My father set it up last year but continued to subscribe to cable. Earlier this year they raised rates, yet again, he got pissed and canceled. He occasionally wishes he still had a few of those channels he had with cable, but otherwise he doesn't miss it at all. More recently, he's been considering free-to-air satellite to augment what he gets now.
As for the reception, it's all digital so it's flawless. Even standard-definition is superior to cable, but HD is on a whole other level. It's a pity this doesn't get more attention. Some people actually believe over-the-air broadcasting is ending with the switch to digital; even at least one high-profile blog has perpetuated this notion.
If people wanted to screw the cable companies they'd just dump them. But people have a hard time letting go of all the programming they get. After a week, however, most wouldn't miss it. The majority of television programming is drivel anyway and most shows nowadays wind up on DVD or online further reducing the need for cable, satellite or anything else.
Of course if everyone left then these providers really wouldn't have the money to set up a proper network. But then, this is one of the very few times where I'm inclined to think that like the highway system a high speed communications network might be their responsibility. At least until I'd learn they're spending 5 times more than they should, taking 3 times longer than projected and making a mess of it.
FIOS TV Has one HUGE Limitation IMO (Score:5, Informative)
Re:FIOS TV Has one HUGE Limitation IMO (Score:5, Informative)
Re:FIOS TV Has one HUGE Limitation IMO (Score:5, Informative)
There's lots of great FIOS/FIOS TV help over at BroadbandReports: http://www.broadbandreports.com/forum/vzfiber [broadbandreports.com]
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Re:FIOS TV Has one HUGE Limitation IMO (Score:4, Insightful)
Captain Google to the rescue! (Score:4, Informative)
So are you saying companies should be forgiven when they give you crap that dies when it shouldn't die in the first place?
I agree, one bad experience is too small to be considered statistically significant. However... googling for "actiontec routers suck" [google.com] (without the quote) gives us these results:
"Fix For Mysteriously Rebooting FiOS Actiontec Routers - Verizon
"RE: Need to replace dead Actiontec router... options
"Help! Verizon FIOS and Actiontec router keeping me from MetaFilter
"Verizon sued over GPL code in FiOS routers - Engadget"
"ACTIONTEC M1424WR Router Problem - [H]ard|Forum"
"SmallNetBuilder - Small Network Help - Actiontec MI424WR Review
"Verizon: FiOS Router Constantly Rebooting? Here's The Fix"
Just FYI, Google returned around 700 hits. And for "Actiontec router problem" (without quotes), I got 13,600 hits. Significant enough for ya?
Finally, that GPL violation Issue tells me that Verizon isn't an example of honesty... I'd stay away.
Adolf's Third Law (Score:4, Insightful)
Any time an individual searches the Internet hoping to find negativity on any topic, no matter how innocent, they will not be disappointed in that effort.
To wit:
Linux sucks. [google.com] Windows sucks. [google.com] Dell sucks. [google.com] HP sucks. [google.com] Driving sucks. [google.com] Mercedes-Benz sucks. [google.com] Kia sucks. [google.com] Harley Davidson sucks. [google.com] Furries suck. [google.com] Google sucks. [google.com] Indoor plumbing sucks. [google.com]
I'd go on, but Adolf's Third Law states that I don't have to.
since when does popular mean crap? (Score:3, Insightful)
popular brands have more failures? Gee, maybe you should tell that to Honda/Acura and Toyota/Lexus. They must have missed that memo.. they didn't know that they are supposed to be putting out more crappy broken products/cars instead of the ones they make. You know the ones that get best value and reliability and such ratings every year by consumer reports every year because they d
Re:since when does popular mean crap? (Score:4, Insightful)
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There's another guide that makes the router act as a NIM and somehow brings VOD and the guide back also on dsl reports that I have not tried, but I did confirm with the tech that if I got a NIM that it would work (he actually mentioned he was experimenting at home with various setups, which was
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I sort of like having Verizon and Comcast at odds against each other as well. I've gotten discounts from both when mentioning that I could always go with the other for [tv/internet].
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Re:FIOS TV Has one HUGE Limitation IMO (Score:5, Informative)
Plug your TV cable into the Actiontec but use the router of your choice for your Internet access connected to the ONT via the Ethernet switch. Verizon will issue IP addresses to both boxes. I am not guessing about this, this is how I have been running since I added 802.11N support and didn't want to stack routers. You will still only be accessing the Internet via one MAC address, but your program guide, PPV and on demand will come through the other. You should see the packets fly between the ONT and the Actiontec when you fire up an on-demand HD program.
Do not connect both the Actiontec and your other router to the private side of your LAN unless you want to see what dueling DHCP servers do to your connectivity.
Re:Who has what? (Score:5, Interesting)
Play 30 second commercials with dancing 7-foot tall VRAD cabinets. I guess they're supposed to be huge and in everyone's front yard. Obviously.
Why bother to have better services when you can just slander your competition?
Re:Who has what? (Score:5, Interesting)
Lucky!
We just get the turtles in the lawn, turtle dinner parties, turtle this, turtle that.
Oh, and the fake new reports, and the guy squirting silver stuff on his shoes to run faster and jump higher.
But it all amounts to "slander your competition" except perhaps the vats of silver stuff.
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Do you still get the turtles?
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They'd better be careful about that analogy. Somebody's liable to do a commercial about the tortoise and the hare. Portray Comcast as the hare, download caps and Bittorrent filtering as the hare falling asleep while the tortoise wins the race.
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Last year, Rogers wasn't so bad, but this year I've noticed a huge difference in one thing: hockey. Local Senators games look much worse than they used to. Granted, some people don't seem to
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I don't even have TV anymore. Dumped it back last year, which means in the last five years, I've had no cable for three of them. Do I miss it? Nope
Re:Perhaps we don't really need HDTV? (Score:4, Informative)
Re:Perhaps we don't really need HDTV? (Score:5, Interesting)
Do they? Not if someone had to compare screen caps to prove it.
in the compressed images, you can see the artifacts.
Artifacts in screen captures don't necessarily mean noticeable artifacts in moving video. Screen captures in NTSC look like crap, far far worse than you "really" see when watching TV, thanks to the persistence of vision.
This point, by the way, was also in TFA.
Re:comcast (Score:5, Funny)