I've had this problem for quite awhile. But I think something inside my DVR makes this "beep" sound infrequently, like you would hear from a wristwatch or a small timer. It's not coming from the TV, it's coming from the DVR unit itself. Over where the DVR is placed is a Nintendo Wii, and a Samsung DVD/VHS player. But this beep recently started happening, and I'm not sure where the beep is coming from, nor am I able to locate what is making the beep. Right now, I somehow think it's the DVR, but I'm not positive. I've had the Wii and the DVD player for awhile now, so that's why I think it's the DVR. Has anyone else had this problem?