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Long delay when switching channels on PRO

Discussion in 'TiVo Roamio DVRs' started by Ziggie, Feb 7, 2014.

  1. Feb 7, 2014 #1 of 40
    Ziggie

    Ziggie TiVo Since 2003

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    We're experiencing a long delay when switching channels on our PRO... about 4 - 6 seconds. We'll switch, the info bar will pop up, but it takes a long time for the station to actually tune in.

    Is this normal for the PRO? Or something we need to figure out and fix?
     
  2. Feb 7, 2014 #2 of 40
    moonscape

    moonscape Member

    469
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    Jul 3, 2004
    SF Bay Area
    I just set mine up this afternoon/evening and am having the same long delay. But I also have the C133 error so don't know if they're related.

    Am quite sure it's not normal though.
     
  3. Feb 7, 2014 #3 of 40
    CoxInPHX

    CoxInPHX COX Communications

    2,350
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    Jan 14, 2011
    Phoenix, AZ
    I am only seeing about a 2 second delay when channel up/channel down, and that is with a Tuning Adapter which Comcast does not use, so 4-6 sec is too long.

    There may still be background indexing going on with a newly set-up unit though.

    The C133, service problem (which seems to be fixed ATM) is definitely going to effect all Roamio user interactions very randomly.

    Since your CableCARD is not getting HBO, your slow tuning could be also due to CC authorization issues.
     
  4. Feb 7, 2014 #4 of 40
    Ziggie

    Ziggie TiVo Since 2003

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    We just set our PRO up tonight as well. Sorry to hear you're having the same problem :(

    The card would be getting HBO but the Comcast rep did something on her end to screw it up :thumbsdown: It had been working perfectly fine in a different TiVo unit not a minute before. It's also the same card they paired correctly just last week (during our first attempt to set up the PRO).
     
  5. Feb 8, 2014 #5 of 40
    ncfoster

    ncfoster Member

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    Jan 22, 2011
    I am not experiencing any problems with channel-changing speed on my Pro. I haven't timed it out, but I'm thinking it is closer to 1 second than 2. Sorry to hear that you have yet another issue.
     
  6. Feb 8, 2014 #6 of 40
    DCIFRTHS

    DCIFRTHS I dumped SDV / cable

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    New York
    I am also seeing about 1 second to tune in a channel. Using FiOS here.

    EDIT: I am i using a Premiere XL - not a Roamio.
     
  7. Feb 8, 2014 #7 of 40
    Dan203

    Dan203 Super Moderator Staff Member TCF Club

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    That's not normal. You said in the other thread you were having trouble with the CableCARD. If it's having problems then that could be causing the delay.

    Also check the signal strength under Account & System Info -> DVR diagnostics. If it's lower then like 85% then that could be a problem. Also if it's at 100% then look at the SNR value. If it's higher then 40 or lower then 20 that could be a problem too.

    Also if you have a tuning adapter try disconnecting it and see if that speeds things up at all.
     
  8. Feb 8, 2014 #8 of 40
    Gary-B

    Gary-B Member

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    Try going to settings/video/Video Output Format and just check either 1080i or 720p and see if that helps.
     
  9. Feb 8, 2014 #9 of 40
    Dan203

    Dan203 Super Moderator Staff Member TCF Club

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    Oh yeah, that could be it. When you go to that screen Gary suggested make sure only one format is checked. That will force the TiVo to scale everything and prevent your TV from having to adjust to the native resolution of new channels.
     
  10. moonscape

    moonscape Member

    469
    2
    Jul 3, 2004
    SF Bay Area
    Hoping the issue has improved for you Ziggie - it seems normal for me now with a 2-3 second delay.

    Comcast tried to pair my CC 3x last night, each time a failure. Before trudging to their office in the rain today, I decided to try one last time. 4th time was a charm. They had entered the numbers correctly, but the last guy said they had not done something in the right order. And I had called the much-advertised correct number for this. Comcast solved, on to Tivo, re C133.

    I had purchased a new router just for Roamio, knowing it could be an issue, and the C133 last night (after Roamio updating, downloading data, etc) made me uneasy about being able to dx the issue in the future. Tivo was gracious enough to offer me a MoCa so I'll install that next week when it arrives.

    Glad to be up and running with lots of space for the Olympics!

    I really do prefer the menu on my S3s though. All that real estate taken up about shows at the top is something I don't like and will have to get used to. It's all too busy for my taste, and since I have vision issues, the other interface was much better for me.

    But - Comcast VOD worked right away, so I'm grateful for that. All in all the glitches have been small, and I've been blessed not to have to go through what you did, Ziggy! So glad to hear you're finally functional though :)
     
  11. Ziggie

    Ziggie TiVo Since 2003

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    Thank you everyone for the great suggestions! TiVo is now responding quickly!

    (Although... I am wondering why the video output format is defaulting to 720p when the television is a Sony with 1080i?) :confused:
     
  12. tarheelblue32

    tarheelblue32 Active Member

    3,647
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    Jan 12, 2014
    Raleigh, NC
    Some people prefer 720p, some prefer 1080i. You can set the video output to whichever you prefer in the settings as described above or just let the native resolution on whichever channel you are watching decide for you. You can also have the Roamio upconvert to 1080p if you want.

    The resolution that displays on the right side of the pop-up box when you hit the "info" button on the remote is always going to be the native resolution of the source material you are watching. To see what the Roamio is actually converting the video resolution to, hit the "up arrow" button on the remote and a little box will pop up in the bottom right of the screen.
     
  13. Ziggie

    Ziggie TiVo Since 2003

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    Thanks tarheelblue! I will check this out ;)
     
  14. aaronwt

    aaronwt UHD Addict

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    Set it to one output resolution. I have mine set for 1080P60 output and the channel changes are one second or less. It's longest when changing between two channels with different resolutions. And only half a second when both channels have the same reoslution. If I had the output set for multiple resolutions, then the channel change time would be several times longer.
     
  15. Ziggie

    Ziggie TiVo Since 2003

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    Thanks aaronwt ~ I've set it to 1080i :up:
     
  16. Dan203

    Dan203 Super Moderator Staff Member TCF Club

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    No TV is 1080i, not unless it's an old CRT. Flat panel TVs are made up of pixels arranged in a grid. So your TV is either 1920x1080, in which case it's 1080p, or it's 1280x720, in which case it's 720p. The only reason 1080i is used for broadcasting is because there isn't enough bandwidth to transmit 1080p and because the HDTV spec was designed back in the 90s when CRTs were still the primary form of TVs. (CRTs are actually interlaced so the supported native 1080i)

    For best results you should use either 1080p or 720p depending on the number of pixels your TV has. By selecting 1080i you're forcing your TiVo to convert 720p material to interlaced and then forcing your TV to deinterlace it for display. You're losing quality that way. By setting it to 1080p or 720p a 1080i signal will still need to be deinterlaced by the TiVo but only once, so the quality loss is less.
     
  17. slowbiscuit

    slowbiscuit FUBAR

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    You have to select both 1080i and p, can't select 1080p by itself.
     
  18. CoxInPHX

    CoxInPHX COX Communications

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    Phoenix, AZ
    With the Roamio you can select just 1080p (60) and 1080p (pass-thru only), assuming your TV is 1080p.

    With the Premiere there was no 1080p (60), so you had to select 1080i
     
  19. Ziggie

    Ziggie TiVo Since 2003

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    First of all, I can't thank you enough Dan for all the help you've given me! I learn so much from you! :up: ;)

    The stats for the tv are: Display Resolution: Full HD 1080 (1920x1080) 240Hz

    So, should I set it to 1080p ? (or leave it at 720p?)
     
  20. aaronwt

    aaronwt UHD Addict

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    Mine are set for 1080P60 only. Nothing else is selected.
     

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