I just got my 6.3 IR/UHF remote to work TV1, minutes ago.
Took battery cap off, slid out the blue #2 key, turned over to black UHF. (This moves a switch when inserted.) Display menu+menu, press and hold Sat until all light, press desired number code, then #, and finally record. The Dish tech had set one 722 to TV1=4 TV2=12 and the other to TV1=7 TV2=11. Both A/B switches were A.
I did not check the 622 in son's room. You should see the number change on the menu+menu or front-panel info screen. Remember doing Sat hold, #, # will flash the number code in pulses--hard to check the big ones.
I still looking for a code to program VCR or Aux as a second 722. To set Aux as a TV the code is preceded by 0, for VCR/DVD by 1, and for an tuner or amplifier by 2. Don't see any codes 000 to 499. So what code for the Dish receiver? Is there one?
-Ken