Philips E-Box FTR9965 DTV Receiver "comcast black screen" Questions

...black out when a special visual effect is shown on a channel, or certain types of commercial. I tried changing HD cable box, but that was not the problem. Try removing 1080i from your list of ...

Comcast cable. I still have the original packaging as I am very protective of the unit. When I brought it back home I was not able to get the video to work. I see the grey powering up screen but I get

...black for minutes or sometimes hours, if I leave it. Changing the channel restores both audio and video. Sounds like your SNR is getting too high and causing the signal to overload. A few things can ...