I took everyones advice and called Comcast in to look at the SA8000HD because it just shuts off. He said that it is built in the software that after 2 hours of idle time it goes into shutdown mode. Kinda like Standby in a computer. He also said that the choppy picture and popping audio was because I had programs saved in the DVR. He explained that the more things you have saved the more frequent it will happen. It was pretty bad with me and I only used 17% of the space in the box. He said that he knew of no new channels that were coming in my area. Thanks again for the advice.