For the last few weeks I've been having problems while watching recordings on my TivoHD. There are two scenarios that have come to be: 1.) While watching a recording, the Tivo will freeze for a second, then play for a second, rinse and repeat several times. After a few seconds, playback resumes normally with no other side effects. 2.) While watching a recording, the Tivo will freeze for upwards of 15-20 seconds, then resume normally. Side effect being, that freeze causes the Tivo to lose the signal on both tuners but only those tuned to an HD channel. SD channels are unaffected. It seems this freezing is taking place on all recordings. When the picture freezes, the unit becomes unresponsive to the remote. Pushing buttons during the freeze results in multiple functions being performed when the unit resumes or a complete reboot. One other issue of note, on occasion, a recording will pixelate and then lose the signal completely, regardless of what else is being done with the unit. i.e. I recorded Meat and Potatoes on Food Network HD last night. When I went to watch today, the recording was only 5 minutes with the above mentioned symptoms. I haven't noticed any problems with live tv or reboots. My initial thought, of course, was the hard drive. But in the last few months I've had problems with my internet connection dropping daily. The internet has been fine for the most part recently but now this problem with the cable signal has crept in. What do you think, HD or signal problem?