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OTA antenna not as clear thru TIVO

Discussion in 'TiVo Premiere DVRs' started by momflee, Jun 7, 2013.

  1. Jun 7, 2013 #1 of 25
    momflee

    momflee New Member

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    Jun 7, 2013
    I have been using Mohu Leaf Ultimate antenna plugged directly into TV and the picture quality was unbelievably clear - much clearer than satellite or cable. I wanted to record, so I bought the Tivo Premiere and am plugging antenna coaxial cable into the unit and connect unit with TV with HDMI cable. The disappointment is that although I'm getting my channels ok, the picture quality is not nearly as clear as when the antenna went straight into the TV. What are the reasons, and should I split the coaxial so that I can use different sources - sometimes TV with antenna, sometimes Tivo? (The picture quality with Tivo is about the same as with satellite and cable.)
     
  2. Jun 7, 2013 #2 of 25
    lillevig

    lillevig Hot in West Texas

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    Check the signal level screen when the antenna is hooked to the Tivo. It is possible that the signal is actually too strong going into the Tivo and needs to be attenuated. Running the antenna through a splitter would help that at least somewhat.
     
  3. Jun 7, 2013 #3 of 25
    atmuscarella

    atmuscarella Active Member

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    Rochester NY
    Check you TV settings for the input the TiVo is connect too. I am not sure what the word clear means to you, but your TiVo should not be doing anything to the OTA signal that degrades the picture quality.
     
  4. Jun 7, 2013 #4 of 25
    ShayL

    ShayL Member

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    Dallas, TX
    It splits the signal internally so it might be too low of signal strength.
     
  5. Jun 7, 2013 #5 of 25
    momflee

    momflee New Member

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    Jun 7, 2013
    Mohu Leaf Support says that because Tivo Premiere has two tuners, it is split right from the get-go. Is that what you mean, ShayL?
     
  6. Jun 7, 2013 #6 of 25
    ShayL

    ShayL Member

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    Jul 17, 2007
    Dallas, TX
    Yes. Check your signal strength through the TiVo.
     
  7. Jun 7, 2013 #7 of 25
    atmuscarella

    atmuscarella Active Member

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    Rochester NY
    Yes that is what it means, but splitting the signal should not degrade the over all quality unless you are right at the point of not having enough signal strength to receive it at all and in that case you would likely see intermittent pixelation/breakups. You can check the signal strength in the settings area to see what you are getting. I don't have any issues with anything above 50-55.
     
  8. Jun 7, 2013 #8 of 25
    socrplyr

    socrplyr Active Member

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    Two questions
    1. What kind of connection are you using to hook up the Tivo to the TV?
    2. What is the output resolution of the Tivo set to?
    Generally, those are the only two ways to significantly reduce the picture quality. If you are seeing many blocky artifacts, that is a completely different kind of issue. That would be a signal issue and would lead you to check the signal levels above.
     
  9. Jun 7, 2013 #9 of 25
    momflee

    momflee New Member

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    Jun 7, 2013
    Where do I check output resolution? Tivo to Tv is HDMI cable. Picture is not blocky, and I receive all the channels as with antenna only. The picture quality is just not as clear. OTA to TV was crystal clear - clearer than satellite (with dvr receiver) and with cable (again dvr receiver).
     
  10. 9300170

    9300170 Member

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    Feb 20, 2003
    Tempe, AZ
    Easiest way is to touch the format button on the front of the TiVo and cycle through the various ones. Or, you can go in to settings and verify that you're outputting at 1080i for OTA.
     
  11. PCurry57

    PCurry57 Liberal Hippie Chick

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    Feb 27, 2012
    Dallas, TX
    It sounds as if your not watching the program on your TiVo in the original broadcast format. While My TV's and the TiVo's are capable of everything 480i, 480p, 720p, 1080i and 1080p in the display settings I select only 1080i/1080p (TiVo will not upconvert to 1080p)

    [TiVo Central] -> [Settings & Messages] -> [Settings] -> [Video] -> [Video Output Format] Select the highest resolution your TV can display and deselect everything below. Upconverted content while not actually any better than the original isn't worse (the possible exception being sports broadcast in 720p). Where as content down converted to a lower format well your telling it to lose, so it's on you.
     
  12. momflee

    momflee New Member

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    Jun 7, 2013
    Signal strength is around 60. Display is 1080i. Mohu Support says I may need stronger antenna to offset the degradation because of the internal splitting.
     
  13. crxssi

    crxssi Veteran TiVo User

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    Apr 5, 2010
    "Clear"??

    This is HDTV- it should look the same on your TV tuner as from the TiVo tuner. If not, there is spmething wrong with your resolution setting. Because otherwise, it has to be the same. It is digital. There is no such thing as picture "degradation". Either you have a perfect picture or you have breakup or you have no picture.
     
  14. ggieseke

    ggieseke Active Member

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    I would also check all of the video settings for that HDMI input on your TV and compare them to the antenna settings. On my LG flatscreen every input has different settings.
     
  15. crxssi

    crxssi Veteran TiVo User

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    Apr 5, 2010
    +1 good idea. I have noticed the same thing on TV's where each input has all different settings available and the picture can be shockingly different between them.
     
  16. momflee

    momflee New Member

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    Jun 7, 2013
    Cannot find different video settings on TV for different sources. Signal strength on major channels in the 80's. Thanks for your help - I think this is very good quality picture, and I don't want to put in a different antenna.
     
  17. ggieseke

    ggieseke Active Member

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    On my TV they aren't listed separately in the menus, but changing something on one input only affects that input.
     
  18. nooneuknow

    nooneuknow TiVo User Since 2007

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    Cox Cable...
    I don't want to start a war... But, I recall poor picture quality being a major complaint for OTA users, when the Premiere came on the market. Many people were reporting excellent quality if the same coax input was used on their TiVo HD, and poor quality if that same coax was used on the input of their new Premiere. It's my understanding that it's a tuner/chip issue, and the reason why many people still keep their TiVo HDs around (for better OTA quality).

    I'll save the people who want to jump all over me the trouble of pointing out just how many settings can be changed/used in both the TiVo and the TV, if the TV has independent settings for each input. The people that swear the Premiere sucks for OTA tried everything, and made sure to use the same HDMI input, as well, since it's been reported that some TVs get better quality using Input 1, less with 2, and even less the higher the HDMI input number.
     
  19. momflee

    momflee New Member

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    Jun 7, 2013
    I will try moving the Tivo to HDMI1 because it currently is on HDMI2. It partially is the comparison - once you see OTA direct to TV - you realize that what you had previously through cable/satellite DVR's was not on the same level, and you want to maintain that level even though you are going through another receiver - the Tivo premiere. I think what people have said about the signal being split between two tuners makes sense.
     
  20. wmcbrine

    wmcbrine Ziphead

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    Aug 2, 2003
    Actually those comments are misguided. That would make sense in the analog realm, but not in digital (which all HD OTA is). In the digital world, you either get enough signal for a perfect picture, or you get big blocks of color, followed rapidly (as the signal level declines) by no picture at all. In no case does an inadequate signal result in a "soft" look, or ghosting, or in the various kinds of noise common to analog TV. For those problems, you have to look to either the TV's input-specific settings, the TiVo's output settings, or the connection between the TiVo and the TV. (In the case of HDMI, you're again dealing with a digital signal, so many types of image flaws are ruled out.)

    My money is on the TiVo being set to the wrong output resolution, since this can make for a soft-looking image. Assuming that's the issue -- it's not really clear from your description.
     

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