I have the Comcast dual channel DVR. In a neighboring room, I have a standard non-DVR cable box. When both sets are on at the same time, there is a brief time lag on the DVR box. I presume its because I'm actually watching recorded material, rather than live. It's very annoying, because it's like an echo. You first hear the sound from the neighboring room and then a moment later fromt he DVR box set.
Is there a way to get the DVR box to display/play just live output whether or not it is recording at the same time?