In Nov 2008 I bought a 32" Sharp Aquos HDTV and got Comcast to install an HD DVR. From the very beginning we have had 2 to 5 second blackouts with no sound, pixellation and other broadcast problems. Had Comcast out numerous times. Once they replaced the Motorola STB. Same problems. They said it had to be the TV. I didn't believe them because sometimes the blackouts were on the DVR (if you went back the blackout appeared at the precise location and duration every time). Other times you can go back on the DVR and the blackout is not reproducible. At the beginning of July I gave up on Comcast because the FIOS salesman guaranteed me I would have no problem with FIOS because it was 100% fiber optic. So I signed up. Turns out it isn't 100% fiber optic because they use Comcasts old wiring in the house (somehow I thought because of the 6 hour installation they would be wiring the house with fiber optics). Same old problems. I've called Verizon 4 or 5 times in a little over a month. They also replaced the STB (so now we are on Motorola #4). They can't find the problem and say it's my TV. Sharp is coming out to replace some "parts." Can someone explain to me why it would be the TV when the blackout is on the DVR (at times)? I don't know much about this stuff. Thanks for your help.