Bad aspect ratio on Series 3 with 480 programming

Discussion in 'TiVo Series3 HDTV DVRs' started by jwatte, Sep 4, 2007.

  1. Sep 4, 2007 #1 of 11
    jwatte

    jwatte New Member

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    Sep 4, 2007

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    I have a TiVo Series 3 (bought the week before the rebate -- argh!).

    It is connected through a HDMI switching receiver (Sony STR-DA5200ES), to a 1080 LCD (Sharp LC-52D92U).

    The TiVo is set to "native/pass-through" for the HD formats, so 480 shows are sent as 480, 720 as 720 etc. The receiver additionally does pass-through of HDMI (no re-conversion), so the TV is doing up-conversion for display. The TV setting in the TiVo is 16:9.

    The problem I'm having is that non-HD TiVo material (including downloads) has a slightly bad aspect ratio. When I view in Panel mode, the image is slightly too narrow. When I view in Full mode, the image is noticeably too wide (as expected). In Zoom mode, it's still slightly too narrow (same aspect as Panel).

    Other sources (DVD, Blu-Ray, PS/3, Xbox 360, receiver's set-up screens) all appear to have the right aspect ratio.

    If I set the TiVo to up-scale to 1080i for all program material, it doesn't give me the wrong aspect ratio, but the TiVo scaler doesn't look as good as the TV built-in scaler.

    What can I do to trouble-shoot and fix this? Anyone seen the same problem?
     
  2. Sep 4, 2007 #2 of 11
    AbMagFab

    AbMagFab What happened, TiVo?

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    It's your TV (obviously). You might need it calibrated for SD content over the HDMI port, or you might be able to tweak it some using the built in TV menus.
     
  3. Sep 4, 2007 #3 of 11
    Amnesia

    Amnesia The Question

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    Isn't there a "Standard" or "Naitive" mode where the TV just displays what it's given?
     
  4. Sep 4, 2007 #4 of 11
    MScottC

    MScottC Well-Known Member

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    You may want to try setting your TiVo to either 720p or 1080i (matching the native resolution of the set) FIXED and see how the set behaves. I have to agree that the set is most likely the issue, not the TiVo as there isn't much the TiVo would do in "Native" mode that would affect the scaling.
     
  5. Sep 4, 2007 #5 of 11
    litkaj

    litkaj Member

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    I can duplicate this on my LC-52D62U. You can "fix" it by changing the view mode for the TV when accepting 480i content. I forget which one you use but one will give you output almost identical to the aspect of using the TiVo to upscale everything to 1080i.

    By the way... Is your 92 as slow as my 62 when changing input resolution? My 62 takes a solid 3-4 seconds to switch back and forth. That is the reason why I decided to use the fixed 1080i output on my S3. I'm planning on picking up the new Yamaha RX-V1800 that does 1080p upscaling and I'm hoping that it can make the switch faster...
     
  6. Sep 4, 2007 #6 of 11
    rainwater

    rainwater Active Member

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    This is one advantage the TiVo HD has over the S3. In the TiVo HD's hybrid mode it will upconvert SD content to 480p. Most likely the TV would show this correctly as opposed to 480i. I can't see why they can't add hybrid mode to the S3. Perhaps in the next software update they will have the same modes as the THD.
     
  7. Sep 4, 2007 #7 of 11
    jwatte

    jwatte New Member

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    Sep 4, 2007
    Hmm. Yes, my Sharp is slow switching between resolutions. Setting the TiVo to 1080i fixes the problem, but suffers from quality issues.
    I was thinking that 480i already works on the TV, because DVDs have no problem, but then I realize that I play 480i through a Mac (which upscales to 720p) or a PS/3 (which upscales to 1080p), so perhaps it is the TV with 480i sources. I'll have to hook up something else and verify.

    Btw: I wouldn't assume that the Yamaha upconverts to 1080p for anything that comes in over HDMI. All AVRs I've seen so far have only done pass-through of HDMI, and up-conversion of analog inputs.
     
  8. Sep 4, 2007 #8 of 11
    AbMagFab

    AbMagFab What happened, TiVo?

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    #1, it's clearly the TV (not "perhaps")
    #2, many high-end AVR's actually upconvert as well, so you must be looking at a narrow set (don't assume you've seen everything)
     
  9. Sep 4, 2007 #9 of 11
    jtkohl

    jtkohl Member

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    Try setting the TiVo to think you have a 4:3 smart screen, I think that's the setting I used when I wasn't using 1080i fixed.
    If you tell TiVo you have a 16:9, it assumes the TV will stretch SD output so it narrows the output to pre-compensate.
     
  10. Amnesia

    Amnesia The Question

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    No it doesn't.

    I used to keep my TiVo on Native, but I grew tired of my TV constantly switching input formats. But even then, the SD and HD were both in the correct aspect ratios...
     
  11. jlib

    jlib Lean Forward

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    Carmel...
    Since you like the TV to do the scaling, leave the TiVo in native and panel mode but change from 16:9 to smart screen as jtkohl suggested. This assumes you prefer to watch SD in 4:3. That will most likely fix your problem.
     

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