Anybody in San Jose - Campbell with Roamio or Premier & Comcast: Are you having problems with your Tivo, or is all OK? After reading all the problems with Roamios, I'm hesitant to buy a new Roamio until all the bugs are worked out. I've dealt with Comcast and know they are not helpful if there's a problem. I'm having problems with both my Premiers not getting picture and sound on many HD cable channels in the 700 channel region (MTv, MSNBC, CNBC, COMEDY CENTRAL, etc.)All I get is a message that there's a problem with the signal on the channel (V53). I get Local HD stations & HBO, Showtime, etc. I do receive the equivalent SD channels of MTV, MSNBC,CNBC, etc. Same problem happened on both Tivos at the same time. Comcast DVR hooked up to the same inputs works fine! Comcast blames Tivo, Tivo blames the M-card.