I have a Tivo HD XL. I recently hooked up a new turntable to a receiver in the same cabinet. After this, the display through that HDMI slot reads NO SIGNAL. I switched out the HDMI cables/slots/other cables and no dice. The PS3 still works in any of the HDMI tv slots and with either cable. Now here's the thing that gets me. If I have it hooked up and unplug the unit from the back and plug it back in - I get the powering up Tivo screen which lasts for about 30 seconds. Then it goes back to the NO SIGNAL screen on the tv. Now if I had screwed up the HDMI slot in the back of the Tivo, it wouldn't show me the powering up screen correct? Has anybody seen this or have any advice?