Originally Posted by JustinHEMI05
I have a tivo roamio and comcast xfinity, and was wondering if anyone else experiences subpar HD resolution on some channels, and flickering brightness on others? I don't think it is my TV, because it displays a superb picture with blu ray, so I'm trying to figure out if it's my cable service, or the tivo, or a combo of both.
I figured out how to check my signal strengths, and they appear to be just fine, in the 90s.
It (most likely) is the stations themselves that are not providing a quality picture. It is unlikely to be a Tivo problem (assuming you set it to output your TV's resolution). Some HD channels are only 720p, and others seem to be intentionally fuzzy. For example, I used to love watching TCM, but everything is just a little fuzzy on a big screen. The quality is OK for a rare old movie, but high quality DVDs are sharper than what I see on that station.
Your cable company could be part of the problem...signal strength is not always steady. I don't know if this is true (or how it could be true), but a Comcast tech told me that one of my neighbors had a faulty TV that was screwing up the signal throughout the neighborhood whenever they turned it on.