I have an antenna mounted on the roof with 50' RG6 cable. One splitter, 1 lead going to the OTA tuner on my Samsung DLP TV, and the other going to the Vi622 OTA tuner. When I use the OTA tuner on my TV I have no problem. I can watch TV all day with out signal loss. When I switch to Vip622 I get signal loss and pixel problems. E* has replaced (3) units with 4 different tech. Still have problem. Is it a software issue like to HDMI problem.