I have gotten a message a few times time on channel 41 (spike network I think) that says there is no TV signal detected on channel 41 so CSI will not be recorded.  The message comes on right at the starting time of the show.  If I flip to that channel on live tv it shows up fine and I can hit record and it starts recording fine.  This only happens maybe 1 out of every 8 csi's that I have scheduled to record.

Any ideas ??

Thanks