Roamio plus vs cable company dvr - PQ

Discussion in 'TiVo Roamio DVRs' started by davidg716, Jan 22, 2015.

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  1. davidg716

    davidg716 Member

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    Jan 20, 2015

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    I have Brighthouse networks in central Florida. I recently switched from a Cisco 8640hdc to a roamio plus with tuning adapter. I've noticed that the picture quality of the roamio is not as good as the 8640, I'd say about 90%. The issue is compression, not blocky, but rather small squiggly lines around the edges of objects. I'm sure it's set to best quality for recording, and it's set to 1080p and my display en reflects this. Any ideas? I'm pretty new to TiVo.
     
  2. tarheelblue32

    tarheelblue32 Well-Known Member

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    Try setting the output to 1080i. Maybe your TV does a better job of deinterlacing than the Roamio does.
     
  3. davidg716

    davidg716 Member

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    Actually I tried both, 1080p seems better.
     
  4. heifer624

    heifer624 Member

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    Try unchecking all video formats and have the tivo automatically search and choose the right one for your particular TV while using a good HDMI cable.
     
  5. heifer624

    heifer624 Member

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    I got Brighthouse networks in central Florida also.. make sure you got a good quality splitter capable of 5-1002MHz connected like here:
    http://media.cox.com/support/print_...er_guides/cable_box/InstallingYourCiscoTA.pdf
     
  6. davidg716

    davidg716 Member

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    Wait...what? Splitter? Uhh, I connected the tuning adapters coax out to the TiVo, is that wrong? Apparently it is according to this diagram. Maybe that's my problem! I'll fix it when I get home.
     
  7. JoeKustra

    JoeKustra in the other Alabama TCF Club

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    I like my little cable company but it does, in my opinion, reduce the quality when using the Roamio vs. clear QAM. Sounds like blasphemy but I don't use a TA and frequently use the TV's tuner. Since my TV's parameters are the same for the tuner and the HDMI port I feel that's not a factor. But the whites are brighter and colors deeper. Granted, I have a real good signal and I'm sure the cable card doesn't help, but this just one opinion and nothing to bet the farm on. I didn't see this difference when I had a basic Premiere connected (with same cable card).
     
  8. heifer624

    heifer624 Member

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  9. davidg716

    davidg716 Member

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    That's interesting, I do use moca, I have a mini in the bedroom that connects that way. It must be connecting to moca through the cable modem. (maybe?) I have the roamio ethernet and moca enabled and its connected to an ethernet cable. I'm still going to try splitting the signal to it before the TA. It's on a house amp it probably does not need another 3db.
     
  10. heifer624

    heifer624 Member

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  11. davidg716

    davidg716 Member

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    I'm going to reconfigure the entire setup when I get home later. So far it's tuned every channel I've tried though, so no issues there.
     
  12. heifer624

    heifer624 Member

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    Remember the old saying.... if it aint broke, dont fix it!
     
  13. davidg716

    davidg716 Member

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    Why a poe filter before the tuning adapter I wonder...
     
  14. heifer624

    heifer624 Member

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    blocks moca signals from interfering with tuning adapter. That was my trouble.
     
  15. heifer624

    heifer624 Member

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    you also need another POE on the main feed coming into your house to keep moca from going to your neighbors house.
     
  16. davidg716

    davidg716 Member

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    Jan 20, 2015
    That I do have :) guess I need a few more since my cable modem generates a moca network apparently.
     
  17. davidg716

    davidg716 Member

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    Jan 20, 2015
    Doesn't seem to have made any difference. I can get the artifacts to go away by turning down the sharpness on the display, but then the picture is extremely soft.

    However it seems to have greatly improved the quality of the mini.
     
  18. heifer624

    heifer624 Member

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    Temp rig the mini up to see if that corrects your fuzzy picture issue.
     
  19. davidg716

    davidg716 Member

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    The mini seems to have a more compressed look at it just because the roamio transcodes the signal to send to it. If I understand how all of this works. (However laying on the bed 10ft from a 40" tv it looks perfect)

    Overall I'm really impressed with the entire TiVo ecosystem. For the low price of 12.50 a month you get a much better interface than BHN, whole house dvr, don't have to pay for extra cable boxes, and streaming to my iPad anywhere with a wireless signal. The free lifetime service on the minis are a heck of a deal they have going on now. It's definitely worth sacrificing a small amount of picture quality for.
     
  20. ncted

    ncted A leaf on the wind

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    It does? I had no idea. Why would it do that? Can the Mini not decode MPEG2? I figured it was just using MRS. Is MRS transcoded as well?
     
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