SDV FAQ

Discussion in 'TiVo Series3 HDTV DVRs' started by bdraw, Jul 3, 2007.

  1. wublet

    wublet total newb

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    Nov 30, 2006
    oakland ca

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    Thanks for taking a look.

    Looks like this is a non-issue for all CableCARD customers including Series3 owners, for the following reasons.

    I went to the site and entered my Unique Digital ID. The next page included this footer note: "If you have any digital TV sets or any sets with CableCard, Tru2Way, or TiVo Series 3 connected to Comcast, click here for further instructions." I clicked and the following came up: "Further Instructions -- Most customers who have purchased these advanced TV sets or other equipment should already lease a CableCard TM from Comcast, and therefore already receive digital signals on that set and don't need any additional equipment."

    So it looks like this is not about SDV. Apologies for starting this on the SDV thread, obviously I misinterpreted the Comcast mailer. And thanks much for looking into it!
     
  2. dlfl

    dlfl Cranky old novice

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    Jul 6, 2006
    Dayton OH
    I got the document! I won't bore you with the war story of what hoops I had to jump through -- I don't think I told any lies.

    It does look helpful so I'm making it available. It's a 1.4 MB PDF, so I've put it on a free download site. (It only compressed 15% with zipping, so why bother?)

    Enjoy!
     
  3. Sep 2, 2009 #2223 of 2401
    moyekj

    moyekj Well-Known Member

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    Mission...
    Looks like the first deployment of Motorola Tuning Adapter is slated for September/October time frame for Cox Orange County, CA (Motorola headends) depending on how long beta testing takes:
    http://gadgetress.freedomblogging.c...st-to-test-tivo-adapters-from-motorola/20165/
    There are already a bunch of SDV channels deployed in that market including the latest round of HD channel additions.

    (As probably most of you know to date all Tuning Adapters publicly deployed to date have been Cisco).
     
  4. Sep 6, 2009 #2224 of 2401
    Danno

    Danno New Member

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    Feb 27, 2005
    Actually, I received a Motorola MTR700 from TWC way up here in Bangor, Maine on 9/4. Seems to be working fine, but I can't be sure until SDV is implemented here on 9/15.
     
  5. Sep 7, 2009 #2225 of 2401
    mikeyts

    mikeyts Stream Warrior

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    San Diego,...

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    Who's your cable provider and what IPG are they running on their leased boxes? Macrovision/Gemstar's i-Guide?
     
  6. Sep 7, 2009 #2226 of 2401
    Danno

    Danno New Member

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    Feb 27, 2005
    Mike -

    Cable provider is Time Warner. If you tell me how to find the other info you asked for, I'll be happy to supply it.

    Dan
     
  7. Sep 7, 2009 #2227 of 2401
    mikeyts

    mikeyts Stream Warrior

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    San Diego,...
    Thanks, but I went to the TWC Maine site and found the DVR Quick-Start Guide which would indicate that it is i-Guide, which would mean that they've got an SDV capable version. There haven't been many SDV rollouts on Moto networks, which is why I was interested.
     
  8. cdeckert219

    cdeckert219 technogeek

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    Jan 7, 2006
    San Diego
    Hey, this is very interesting...may help me solve my TA ongoing issues. Thanks for sharing! Very much appreciated.
     
  9. floridaman01

    floridaman01 New Member

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    Sep 17, 2009
    I am in the process of ordering a Tivo HD XL TCD658000 DVR. I am currently using FIOS and have ordered the required "M" card to use. From the research I have done it appears that FIOS doesn't utilize SDV channels so I shouldn't experience any problems receiving all of the FIOS channels on the Tivo DVR. Is this statement correct? I have also read that the signal strength could be too strong and may have to be toned down some otherwise the channels might pixelate. Is this true? Any input from FIOS subscribers using the Tivo HD XL box would be great.

    Thanks
     
  10. moyekj

    moyekj Well-Known Member

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    Jan 23, 2006
    Mission...
    True that FIOS does not implement SDV so no worries there. Also with latest Tivo series 3 software there is no need to attenuate the signal from FIOS anymore as a fix was implemented for that problem.
     
  11. floridaman01

    floridaman01 New Member

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    Sep 17, 2009
    Moyekj:

    Thanks very much for your reply. It is greatly appreciated.

    Thanks
    Doug
     
  12. wcohoe

    wcohoe New Member

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    Mar 12, 2008
    Raleigh
    Bump. I have the exact same problem. occasional breakup of SDV channels only. Now that it's hockey season, with FSCAROLINA showing HD hockey, I am prepared to be royally annoyed again this year. Is there any end in sight to this breakup issue?
     
  13. SCSIRAID

    SCSIRAID Active Member

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    Vero Beach, FL
    I believe they are close to the 'smoking gun'. Now how long it will take after the gun is found to implement a fix is hard to tell. That is where the finger pointing between Cisco and TiVo could start as to 'whose' problem it is and 'who' needs to implement a fix.... I expect the fix will untimately come from TiVo/Broadcom if what I believe is the problem is correct. TWC may be able to tweak some compression parameters and improve the situation too but at the expense of PQ for non TiVo users. Im not sure they will be willing to do that but you never know. They do care about us TiVo people.... they have proven that to me.
     
  14. mercurial

    mercurial Retro-Av

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    Oct 17, 2002
    Caraleigh, NC
    The next time I have an issue, can you call it in and give them my address so they can prove it to me? :p
     
  15. dlfl

    dlfl Cranky old novice

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    But who does "they" include? All TWC regions ???
     
  16. SCSIRAID

    SCSIRAID Active Member

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    Feb 2, 2003
    Vero Beach, FL
    I can only speak relative to the folks I have worked with on this issue... I truly believe they care about their product and want it to be 'right'. One mans opinion.. but one who has spent a lot of time with TWC folks in the last several months trying to figure this one out. YMMV.
     
  17. m_jonis

    m_jonis Member

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    Jan 3, 2002
    Albany, NY
    TW cares about Tivo people?

    Not sure about all TW areas, but from what I've seen the vast majority of TW areas implement CCI bytes to render MRV and TTG useless (that's caring?) Our local TW in Albany, NY says it's a Corporate policy for ALL of TW.

    And our local TW doesn't give a rats ... about Tivo. We've had nothing but problems with the TA and SDV with Tivos since the day it got rolled out and we're still having issues. The constant retort is either to reboot the TA and the Tivo, or "if you had TW DVR you wouldn't have this problem", or "why do you have a Tivo?".

    But again, I suppose you could live in the odd TW area that doesn't set every channel except local broadcast to 0x02 and one that doesn't have massive pixelation, TA reboots, and SDV channel outages all the time.
     
  18. dlfl

    dlfl Cranky old novice

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    From this I am getting what you don't explicitly state: The TiVo decoding process is not properly handling valid cable mpeg2 streams, correct?

    If this is the case, could it provide hope for users in other TWC regions (and maybe other cable cos) in the sense that whatever improvements TiVo eventually may implement to handle this should make their decoding process generally more robust? That would be something to be happy about!

    What makes this particular to just SDV channels? Are they encoded with different parameters?
     
  19. Oct 1, 2009 #2239 of 2401
    SCSIRAID

    SCSIRAID Active Member

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    Vero Beach, FL
    I didnt say it specifically because it isnt proven yet... The mpeg coming from the compressor may work with Cisco equipment but that doesnt mean that its 'legal'... From my discussions with the TWC MPEG guy... the mpeg 'spec' is open to interpretations. The worst case scenario is where Cisco says its legal and TiVo says its not... Who arbitrates?

    Also... this current thinking may be wrong... Another possible place for the problem to be is in the Edge QAM. My understanding is that for linear, the transport stream is built upstream and shipped straight thru the Edge QAM. For SDV, the Edge QAM has to rebuild the transport stream based on what programs the service group is 'requesting'. If anybody has further insight, Id love to hear it.
     
  20. Oct 1, 2009 #2240 of 2401
    dlfl

    dlfl Cranky old novice

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    If the "current thinking" is correct, I'm still wondering what would explain problems only occurring on SDV channels? Are they generally encoded with different parameters.

    The other possible theory obviously explains differences between linear and SDV channels.

    Given the technical complexities it's amazing things work as well as they do. The only way to guarantee performance equal to the STB's would be to duplicate their hardware and software. And that would only cover one brand and model of STB.

    It's also surprising TWC is willing to show this much interest in a problem that only effects about 0.5% of their digital subscriber base. I wonder if they have an ulterior motive, e.g., prep work for a future collaboration with TiVo ?

    Is the TWC mpeg guy national or local?
     

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