when it's not on the TV? Take it back to Comcast and exchange for another one. Good luck.
I have a Comcast DVR and a Panasonic plasma HDTV (TC-P42C2) When I try to play back a DVR recording, the box says it's playing but nothing shows on the screen. I suspect that the TV channel is not set to the correct 3/4 because a family member was fooling around with buttons on the Tv the other day. However, I don't know how to check the channel. When I use the input button, TV is grayed out and I cannot select it. I have tried using both the TV remote and the Comcast remote, but neither has any effect. I have also tried using the channels buttons on the TV, but I cannot see the TV channels, so I have no idea where it is set, and nothing has changed. I tried unplugging the TV and reconnecting. I tried disconnecting the DVR and attaching the cable directly to the TV, but that did not help.I appreciate any help.