I managed to convince myself to buy a HD TV last week so I snagged an Olevia 537H from newegg. My cable company (Adelphia) gave me a new HD box (SA 8300HD) for HD access. The problem is that the cable box seems to be sending the TV junk when I set it to output 480i for the SD channels. I get a set of interferance lines (looks like it is telecined) and the picture if offset about 50 pixels to the left. When I set the cable box to output 480p, it looks correct, but the picture is noticably pixelated (probably from the cable box upconverting the signal).
The HD channels on 1080i are awesome, but I can't stand the pixelization on the 480p anymore. I tested the TV to ensure that it was the cable box causing the problem but shutting off the progressive scan mode on my (non-HD) DVD (which should be 480i). The PQ from the DVD player using 480p and 480i is awesome, so I'm pretty sure this is the cable boxes fault.
Anyone ever heard of this problem before?