Ok so I just got our new HD tv set up and some of you maye have seen my other thread with problems but now I have a new one. This doesn't happen all the time so just be aware but I have only had the HD hooked up for 2 days now including today. Last night while watching a program in HD I noticed when I moved around(like I could stomp on the floor and it would happen) the picture on the tv would gets lines in it or would get blocky like some type of interference would occur. The only thing I can think of is a loose connection, loose connection in the new cable box, loose connection in the Tv? Anyone have any comments or help with this one?