Just got a new HDMI cable wanting to use it simultaneously for another HD set, along with the component output on the main set; but, even with a new Sumsung TV, it doesn't see the HDMI output. It's almost like the HDMI output on the 622 needs to be activated, but that's probably not too likely. Reviewing past posts, it appears Dish has a long history of HDMI output problems, but I was wondering if anyone has any suggestions on trouble-shooting, short of calling customer support. I tried the chat feature on-line tonight and wasn't too pleased with the experience. Any suggestions will be appreciated.