I have one of the TV2-IR kits and it works great. What I did was take the UHF remote and flip the chip-thingy at the bottom (I'm sure there's a technical term for it) so the black side was facing up rather than the blue "2" side. That made it IR (don't ask me where I learned that, I don't remember). I was then able to use that remote to "teach" my Harmony IR remote.
I've looked at that, there is a screw and I remove the screw but the 'chip-thingy' doesn't come out. I must be doing something wrong.
Look for Next Generation remote extender (~$35).
There is no better product to accompish your goal.
I use it with Harmony remote in the basement home theater to control all equipment upstairs.
Thanks for pointing out this gem, however, it does not solve the problem. I already have Whole-House IR transmission (IR from anyroom to Home Theater). I need the 722k to accept the IR signal on the TV2 receiver (Line of sight is fine). I also need the ability to put a Dish remote into IR mode, so I can teach it to other Universal remotes, such as a Harmony, Universal MX, Pronto, etc.
Once I can teach another (non-dish) remote to send the proper IR signals, I would like the 722k to accept them on the TV2 receiver.
This should not be this difficult.
I don't think you would need one for each TV but certainly for each dual tuner you wanted to access TV2 via IR.
Most people have one TV connected to TV2, (or TV1 for that matter), But I have a whole house Cable headend for multiple channels: Ch54=DVD, Ch56=HTPC, Ch58=Dish Sat1, Ch60=Dish Sat2, Ch64=MediaPlayer, Ch68=BUD, Ch73=Dish Sat3(TV2), Ch75=Dish Sat4, Ch77=Camera1, Ch79=Camera2
I can watch ANY channel on ANY TV in ANY room, and control ANY device, with Univeral remotes (EXCEPT DISH 722k TV2).
I do not want to place a DISH NETWORK $48 device on EVERY TV in the house. Not practical.
Time to send an email directly to the Software engineers at Echostar.