Year and half ago had Dish Network installed. VIP722K in living room and VIP612 for two bedrooms. Have had no problems until after changed living room tv for a Sanyo DP42840 HDTV and had Dish add HD. Also,connected VIP722K to Sanyo with HDMI cable. BTW, live in pre-wired apartment with dishes on Southend of building. The problem is: For no explainable reason the VIP722K drops the signal to the Sanyo hdtv-"No Signal" pops-up on screen. Also when pausing playback of prerecorded program same thing occurs. Called Dish Customer Support and was told to shutoff VIP722K and unplug power. This didn't fix the problem; so Customer Support tech said she could see the problem and arranged to send a replacement VIP722K. However, after installing and calling Customer Support to activate; in a day or two experienced same problem. After putting up with this problem for about a month; my son moved the Sanyo into his room and moved his SD TV into living room. The unexplained signal loss with VIP722K stopped and the Sanyo works fine-even with paused program for 1\2 hour-when hooked up to VIP612 in son's bedroom. Would appreciate any assistance.