Tuners on the TiVo Elite

Discussion in 'TiVo Coffee House - TiVo Discussion' started by jstaso, Oct 1, 2011.

  1. Oct 1, 2011 #1 of 12
    jstaso

    jstaso Member

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    The AT&T Uverse has four tuners, but two are only SD. Does anyone know if the Elite will be able to record four programs at once all in HD?
     
  2. Oct 1, 2011 #2 of 12
    innocentfreak

    innocentfreak Well-Known Member

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    Yes it will.
     
  3. Oct 1, 2011 #3 of 12
    steve614

    steve614 what ru lookin at?

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    Not if the OP is planning to use it with U-Verse.;)
     
  4. Oct 1, 2011 #4 of 12
    rainwater

    rainwater Active Member

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    That's really because of bandwidth issue with Uverse. You don't have those types of issues with cable :)
     
  5. Oct 3, 2011 #5 of 12
    classicsat

    classicsat Astute User

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    Ontario Canada.
    Uverse has no physical tuners really, in the customer STBs.
    It just has the ability to select multiple streams. It is apparently limited to 2 HD streams due to the network. Other IPTV systems might handle more.
     
  6. Oct 3, 2011 #6 of 12
    atomarchio

    atomarchio Member

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    How does it enable an "entire home" solution by connecting to other Tivo DVRs?
     
  7. Oct 3, 2011 #7 of 12
    rainwater

    rainwater Active Member

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    No one knows for user. For a true "home" solution you will probably need the Preview boxes. The current Premiere's will most likely work the same as they do today but instead of copying shows from another Now Playing List, it will stream them.
     
  8. Oct 3, 2011 #8 of 12
    jeff92k7

    jeff92k7 Annoyed with trolls

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    on planet earth
    To clarify a bit more. If UVerse is limited to only 2 HD streams, that is because ATT has the user's account provisioned as such. UVerse offers multiple provisioning packages (speeds) based on the quality of signal on a customers line. These packages range from 1HD/3SD all the way up to 4HD/0SD. Roughly, the farther you are from the VRAD (neighborhood box) the slower your speed will be, but you will always have a total of 4 streams.

    Back when I had UVerse, I was provisioned at the fastest speed which allowed for up to 4 HD streams into the house. Granted, my DEMARC was only 400 ft from the VRAD which is actually on my property. The DVR, however, is hardware limited to only recording 3 HD streams and 1 SD stream. So, even though you can't record 4HD streams, you could still watch a live HD stream on another box (fourth stream).

    That said, why anyone would choose UVerse for anything other than SD TV is beyond me. They have the worst HD picture quality of any major pay TV provider. Their HD streams are compressed down to between 5 and 6 Mbps. Their on-demand content is approximately 8Mbps, which is still below other TV providers. The compression is most noticable anytime there is any motion on the screen. The picture breaks down into unwatchable blocks.

    For comparison, here is the average HD bitrate of the major pay TV providers, based on research I did months ago.

    uverse: 6Mbps
    Satellite: 8-10 Mbps
    Cable: 10-12 Mbps
    FIOS: no idea...never had it, but supposedly it's pretty high.
    OTA: 19.2Mbps max (normal around 14-16 for broadcasters with no subchannels)

    Granted, different providers use different compression technologies. Those using MP4 compression will have a subjectively better picture than those using MPEG2 compression. But, nonetheless, the more bandwidth you have, the better.

    Jeff
     
  9. Oct 3, 2011 #9 of 12
    djwilso

    djwilso Member

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    According to the TiVo Premiere Elite Datasheet PDF here, it does not support AT&T U-Verse at all.

    It requires either digitial cable or FiOS.
     
  10. aaronwt

    aaronwt UHD Addict

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    I know Uverse looks like crap, but they are at least using Mpeg4 aren't they?

    Lower bandwidth Mpeg 4 can look good if done right. Just look at VUDU. Their three Bar HDX content is only 9Mb/s MPEG4 and the only content that looks better is from a Blu-ray Disc.
     
  11. JimboG

    JimboG New Member

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    San Diego, CA
    U-Verse has no HD streams. At 5.5 Mbps, these are "HD-lite" streams at best.:thumbsdown::thumbsdown::thumbsdown:
     
  12. lrhorer

    lrhorer Active Member

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    The standard for the United States calls for either 64-QAM or 256-QAM for all CATV providers. I doubt many are employing 64-QAM. A 6MHz 256-QAM carrier provides a digital bit rate of 38.47Mbps. Industry norm rate shaping divides this into either 12 SD streams of 3.2Mbps each, 6 SD streams of 3.2Mbps each plus 1 HD stream of 19.2Mbps, or 1 SD stream of 3.2Mbps and 2 HD streams of 17.6Mbps each. FIOS employs this rate shape scheme, as do most CATV providers. Some MSOs reportedly squeeze three HD streams into a single QAM, with a corresponding loss of PQ. Since the compression is adaptive (VBR), the actual bit rate will vary somewhat between some low value and up to 20.4Mbps. Most of the videos I have recorded have an average bit rate around 14 - 16 Mbps.
     

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