Anyone else experience this?
Got the GV42L and a Motorola DCT6416 III STB connected through HDMI. (I've also tested it with component, and everything that follows still applies). The TV receives OTA HD channels beautifully, and the Comcast HD channels through the box come through perfectly as well.
My only problem with this set/box combination is that Comcast's HD On Demand programming is coming through at 480i SD resolution. It comes through in its intended wide screen format, but I have to put the TV in zoom mode to fill the screen, and of course it's still not in HD. I've fiddled with about every setting on my cable box and my TV, and nothing resolves this problem. The only thing I have been able to do to get the TV to at least say it's displaying HD content when watching On Demand is set the STB's "4:3 Override" setting to "off." However, although the TV still says it's displaying 720p content, it's clear that it's not an HD picture (as compared with, say, HBO HD or other digital cable HD channels). Also, the SD channel quality noticeably deteriorates with this setting turned to "off." The HD channels look the same no matter how I have the 4:3 override setting set. Since I still watch quite a bit of SD programming, the terrible picture quality with the setting turned to "off" is unacceptable.
Anyone else have this problem? Any ideas I can try out? Comcast is trying to be helpful, but they act as if no one else has complained that the HD On Demand programming comes through in 480i, and they keep saying that they don't know if it is the On Demand content being provided or a problem with my STB. I've tried the free HD On Demand content, as well as the content provided by the premium channels I subscribe to, and it's the same story with all of them. I'd love to hear from someone else who may have some experience with this problem. Thanks so much!