Just had 622 installed yesterday. What a cluster****. 2 techs showed up and explained to me that all they really had to do was exchange the 622 with the 921 and that no new connections would be necessary! After they said that they were finished I went to TV 2. The night before, and as long as I've had the 921, I was able to watch anything on the upstairs set using the 921 receiver. Anyway, after the install, the TV 2 had no picture. When I asked the techs to connect the new receiver so that I could watch on the upstairs set, they showed me the work order that said to install only set 1 ! They told me that if I wanted any other sets installed, I would have to schedule another appointment and pay an additional $100 for the service. I very nicely asked the techs to now remove the 622 and put the 921 back, so that everything was set up the way it had been before they started. This request was refused and further discussion ensued. Ultimately, they called their supervisor and were approved for overtime to connect the 2nd set. This process, using an existing coax line, took over an hour and resulted in all of my satellite wiring, throughout the house, being totally changed. Bottom line: I am now able to watch TV from either set 1 or set 2. HOWEVER, my rooftop antenna is now disconnected, resulting in no off air channels. What chance do you think I'll have getting somebody from Dish to come back and putting things back the way they were?