do you keep your HD receiver set at 720p or 1080i??

Discussion in 'DISH™ High Definition Discussion' started by 0pusX, Apr 18, 2008.

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  1. allargon

    allargon Legend

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    May 2, 2007
    You must have one of the older Mits. I have a 57" 1080p Mits (57732), and I have zero blurring issues.

    Regarding the HDNet test patterns, information on that can be found in the link below.

    http://www.dbstalk.com/showthread.php?t=74738

    Your set is displaying everything at 1080p through upconversion or (sometimes after upconversion from the Dish receiver) de-interlacing. I bet if you had a 70" display, you would notice the difference in details between 720p and 1080i/p more easily. Below 65", it's not that easy to tell.

    1080i may be broadcast de-interlaced, but it is rarely displayed that way unless you have a CRT or one of those weird Hitachi plasmas.

    =======

    The best advice given in this thread is to set your output to what looks best to you on your display. :up:

    One thing I have noticed that the Dish (211 and 622) receivers are poor upscalers. When I'm settling in for a day of college football from ESPN, Fox Sports Net, Big 10, etc., unless I'm hitting CBS, ABC (Austin affiliate is 1080i) or NBC, I set my receiver's output to 720p. It has nothing to do with de-interlacing artifacts. It's just that the upconversion is better with my displays. I do the same when viewing "American Idol" on Fox.
     
  2. Bichon

    Bichon Godfather

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    Jun 5, 2003
    Two points.

    1. If the station is broadcasting in 1080i, then setting the satellite box to output 720p doesn't eliminate the de-interlacing step, rather it causes it to be done in the satellite receiver rather than the TV. Often the TV has superior processing.

    2. If the original source is 24 frames per second, as it is for all movies and many shows shot of HD video, de-interlacing artifacts will not occur, assuming your TV implements 3:2 pull down correctly (most do).
     
  3. wje

    wje Godfather

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    Mar 8, 2006
    New England
    I wasn't intending to say that setting the 622 for 720p when the content was being broadcast in 1080i was going to benefit you. Rather, I was (attempting) to say that sourcing sports video in 720p is better than sourcing it in 1080i.

    And yes, many tvs have better scalers than the 622, but since we don't get native passthru, it's a moot point 50% of the time.
     
  4. mhowie

    mhowie Legend

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    Sep 30, 2006
    So, assuming the TV has superior processing (and I suspect my Panasonic-768p- does), and following the logic above, should I set my satellite box to output at 1080i so 720p source material (read: sports) de-interlacing is handled by the TV, rather than the E*722 box?

    Thanks,
     
  5. moman19

    moman19 Icon

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    Oct 22, 2004
    Yes. Plasma and LCD displays are always progessive by definition. It's the INPUT of the display that may be p or i.
     
  6. HobbyTalk

    HobbyTalk Hall Of Fame

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    Set it to whatever looks best when you view it. If you can''t tell the difference then it doesn't matter.
     
  7. jackienopay

    jackienopay Cool Member

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    Dec 18, 2003
    I set it to 1080i and my integra 9.8 then converts it to 1080p.
     
  8. toomuchtv

    toomuchtv Godfather

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    May 17, 2002

    I think it is attached to the end of a program. I just set a manual timer for the ten minute gap between the two programs.
     
  9. MyDogHasFleas

    MyDogHasFleas AllStar

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    Jan 4, 2007
    So, the Dish HD DVRs don't have a "passthru mode" or "native mode" where they will pass through the original program format to the TV?

    I know that the DirectTV HD DVRs have this capability. It would be what I would prefer. Then my 1080p set can upconvert from either format effectively.
     
  10. mhowie

    mhowie Legend

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    Sep 30, 2006
    Profound.
     
  11. PanamaMike

    PanamaMike AllStar

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    Mar 30, 2004
    1080i should technically be better, however there are a few things to take into consideration.

    1: Display resolution: If you don't have a 1080p or 1080i the signal will have to be down rezed.

    2: Native source resolution: If the native resolution is 1080i it's all good, but if it's 720p the it should be better to keep it matched at 720p since all you're doing is scaling a 720p lines to 1080. The fewer translations of the original signal the better.

    3: Quality of your scaler and deinterlacer: If you TV has a poor quality deinterlacer or scaler it will affect PQ. For example Panasonic TV's are very poor in this department. This results in jaggies, moire patterns ect... PZ700 doesn't properly handle 1080i film material.

    4: Receiver capability: This is another interesting issue. If you set the ViP 722 to 720p you're telling it to do the scaling for you. This might be a good or bad thing. Depending on whether your outbound electronics are better at this task or not. I haven't seen any reviews indicating the quality of the ViP 722 in this department.

    In the end, set the ViP to whatever produces the best picture to your eye :)

    Mike
     
  12. moman19

    moman19 Icon

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    Oct 22, 2004
    My right eye prefers 720p while my left eye prefers 1080i. I simply close one eye depending upon the format at the time. In my house, this eliminates all issues regarding 720 vs 1080. :lol:
     
  13. Jeff_DML

    Jeff_DML Legend

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    Feb 12, 2008

    bump, same question. Based on this thread I assume no but can someone confirm, assume 722
     
  14. Bobby H

    Bobby H Legend

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    Mar 23, 2008
    I want to know about this as well.

    Do Dish Network receivers force the viewer to select either 720p or 1080i and re-sample the programming to either mode? If so, I think that is just downright stupid.

    I have a pretty nice 52" 1080p 120Hz LCD-TV. I would prefer it if the HD receiver was able to detect I have a 1080p TV with HDMI 1.3a connections and leave the 720p and 1080i programming in the original formats. Changing a HD program originally broadcast in 720p or 1080i to a different format will degrade video quality.
     
  15. wje

    wje Godfather

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    Mar 8, 2006
    New England
    There is no native passthrough capability on the 622, 722, or 612. This has been a long-requested feature. Yes, it annoys those of us with good equipment.
     
  16. Jeff_DML

    Jeff_DML Legend

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    Feb 12, 2008
    bummer, thanks
     
  17. Jeff_DML

    Jeff_DML Legend

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    Feb 12, 2008
    just thinking about this thread, not having native passthrough sucks for us 1080p tv owners.

    how difficult is it to change the output resolution of the 722? is the setting buried deep down in the setup menus?

    Guess I plan to leave it in 1080i mode and switch to 720p for ABC/FOX/ESPN sports. seems like a pain
     
  18. wje

    wje Godfather

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    Mar 8, 2006
    New England
    That's the other annoying thing... there isn't a quick way to change the output resolution. You have to do it from a couple of levels down in the menus.
     
  19. cartrivision

    cartrivision Hall Of Fame

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    Jul 25, 2007
    That's not corect. On 1080p televisions, 1080i video is deinterlaced and all 1080 lines are lit up for every video frame that is displayed, yielding as others have pointed out, about twice as many pixels of resolution for a 1080i signal compared to a 720p signal.
     
  20. cartrivision

    cartrivision Hall Of Fame

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    Jul 25, 2007
    1080p is not higher resolution than 1080i. They both display 1920x1080 pixels. The difference is in the rate of update only, not the number of horizontal or vertical lines of resolution that either format is capable of displaying.
     
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