i have a 42' tc-p4 242 plasma panasonic tv that is less than two months old. i had my dtv box hooked up on hdmi 1 and my blu ray hooked up on hdmi 2. we were watching the satellite fine last night. today mu husband moved the tv so i could paint but did not unhook anything and i did not trip on anything. but when we went to watch later hdmi would not come up. however i moved the dtv to hdmi 3 and it worked fine. i tried powering everything down and moving around but it still doesn't work. any ideas?