What is the best video output format to select?

Discussion in 'TiVo Bolt DVR/Streamer' started by RedCab, Dec 12, 2017.

  1. RedCab

    RedCab New Member

    28
    3
    Apr 16, 2014
    My source inputs are typically comcast hd and netflix so the original source could be 720p, 1080i, 1080p or 4K.

    My TV is a new 75" sony that can display up to 4K (2160p).

    I've tried setting the Bolt output format to "auto" and when I do so (and independent of whether I selected a 4K netflix movie or a 720p TV station), I note the following:
    - TV always says it's getting a 1080p input
    - Netflix selection notes "content is HD" but not "content is 4K"
    So in this case it appears that the Bolt is not passing through the 4K content but it is upscaling 720p to 1080p.

    If I set the Bolt output format by manually clicking on all the resolutions "equal or greater than 720p" than I observe:
    - TV says it's getting a 4K input regardless of selecting a 4K netflix movie or a 720p tv station
    - Netflix selection notes 4K content

    1. Can someone explain the Bolt's logic to me?

    2. What would be the optimal selection? (It seems to me I'd like the original format passed through to the TV and let the TV do the upscaling if necessary).

    3. I'm on the "new experience" Tivo GUI... how do you display the TiVo's actual TV output format? In the "old experience" you could hit the left arrow I think I recall.

    Many thanks...
     
  2. aaronwt

    aaronwt UHD Addict

    22,926
    994
    Jan 31, 2002
    Northern...
    Are you using the Hydra UI? If so there is a bug with the resolution outputs on Hydra. So for me, I have mine set for only 2160P60 output right now.

    Otherwise with the resolutions set for Native output, 720P content will be output as either 1080P60 or 2160P60. And 1080i content is output as either 1080P30 or 2160P30. So I'll keep it at 2160P60 output for now, and switch it back when they fix Native resolution output.
     
  3. MighTiVo

    MighTiVo TiVotarian

    2,612
    60
    Oct 26, 2000
    Nashville, TN
    Is this bug why my SD recordings are displayed in a small box with black bars on all 4 sides?
     
  4. aaronwt

    aaronwt UHD Addict

    22,926
    994
    Jan 31, 2002
    Northern...
    Hit the info button when playing them back. And one of the options will allow you to switch between panel, zoom, and stretch.

    So for an SD show that has black bars on all four sides, you would want to use zoom.
     
  5. MighTiVo

    MighTiVo TiVotarian

    2,612
    60
    Oct 26, 2000
    Nashville, TN
    Whew that seemed to be a bit hidden imho - thanks, Change Panel Mode is what I needed
     
  6. tomhorsley

    tomhorsley Well-Known Member

    1,726
    242
    Jul 22, 2010
    This might depend on the TV. My old samsung would take what seemed like hours to adapt to a different resolution when I changed channels, so I had my Roamio set to 1080i only. My new LG OLED seems to be able to adapt faster than the TiVo so I switched the TiVo to support everything so it would just pass through the native resolution and let the TV deal with adapting. Now I can channel surf faster :).
     
  7. Tony_T

    Tony_T Well-Known Member

    3,217
    1,343
    Nov 2, 2017
    How long is it going to take TiVo to fix this bug?
    I was getting 720p auto-selected, which cropped my screen, and I can only fix this by only selecting 1080i in TiVo settings.
    This can't be that hard for TiVo to fix.
     
  8. RedCab

    RedCab New Member

    28
    3
    Apr 16, 2014
    I did a bit more experimentation... as a reminder, this is using a Bolt and a new Sony 4K TV...

    I have 3 possible input sources:
    Comcast 720p
    Comcast 1080i
    Netflix or YouTube 4K streaming

    When I set Tivo video format to "auto" I observe that Tivo's actual output is:
    from Comcast 720p... it's 1080p
    from Comcast 1080i... it's 1080p
    from 4K... it 1080p <-- very odd that "auto" downscales the resolution

    When I set Tivo video format to check the 4K passthrough, 1080p, 1080i & 720p check-boxes, I observe that Tivo's actual output is:
    from Comcast 720p... it's 1080p
    from Comcast 1080i... it's 2160 x 3840 <-- very odd that 1080i is upscaled to 4K
    from 4K... it 2160 x 3840

    My goal was to have the Tivo output "native" resolution and let the TV do all the upscaling. Seems TiVo doesn't like that idea...
     
  9. aaronwt

    aaronwt UHD Addict

    22,926
    994
    Jan 31, 2002
    Northern...
    No it doesn't. Which is why I mentioned there is a bug with the output. I have mine just set for 2160P60 output now.

    And also with the settings you mentioned, 1080i is actually output as 2160P30. Or 1080P30. Not 2160P60 or 1080P60 as it should be if being sent at those resolutions.

     
  10. RedCab

    RedCab New Member

    28
    3
    Apr 16, 2014
    A year has gone by.... anyone know if Tivo has fixed this bug?
     
    PSU_Sudzi likes this.
  11. TonyD79

    TonyD79 Well-Known Member

    12,313
    1,768
    Jan 4, 2002
    Columbia, MD
    I don’t know about 4K settings but for HD sets it has been fixed.
     
  12. RedCab

    RedCab New Member

    28
    3
    Apr 16, 2014
    I spent 10 mins fiddling with the Tivo video settings ... the Sony 4K TV still reports it's getting a different input than what Tivo is set to output.

    I suppose my TV (Sony X940 series) is good enough to up-convert whatever Tivo gives it so, what the heck.

    If I use any other input... appletv and the native sony tv apps... the native resolution is correct.
     
  13. aaronwt

    aaronwt UHD Addict

    22,926
    994
    Jan 31, 2002
    Northern...
    Yes they did. Sometime earlier this year.
     
  14. Antennaguy

    Antennaguy New Member

    27
    7
    Dec 14, 2018
    El Paso, TX
    I am OTA only, no streaming and find that native resolution looks best especially on the sub-channels that are now capable of HD (although IMO not up to the quality of -01 channels). I just checked 1080i, 720p and 480i in the resolution selection menu. My Sony TV is reasonable fast to switch and I like that fact that the TV itself (not the Tivo) brings up it's info banner confirming the resolution.
     

Share This Page