I have a Samsung LCD tv hooked up to a TivoHD. Usually when I switch inputs, the picture pops in immediately (on the internal tuner and on a svideo input)... but on my Tivo, using HDMI, I get "searching for signal" for like 3 seconds, then the picture pops in. But sometimes, I get "searching for signal" and then 5 seconds later, it turns into NOT SUPPORTED MODE. I then have to either wiggle the hdmi cable in the back of the TIVO, or physically unplug it, plug it back in. I guess the cable "feels" a little loose in the back of the tivo, but not much more than my S3 (attached to a different TV, downstairs --which does not have this issue). Could this be a bad port on the tivo? OR maybe a bad HDMI Cable? Anyone else with a samsung lcd tv, is this normal behavior?