----Our motivation for doing TV1 is that we record shows on both tuner 1 and 2 a lot and want to watch either if possible.
I just upgraded to this 722 from a 921 so I'm learning too. If I say something wrong, please let me know.
If I'm not mistaken, I think there is confusion between TV1, TV2 and the 2 tuners. I always record from my main HD TV. You don't record ON, but rather FROM the 2 tuners (and/or the OTA tuner) to the disk and they have no connection to one TV or the other. I'm able to watch all my recordings on either TV since they are just recordings on the dish.
The only connection I can see is that if you have a 2nd TV on, it is using one of the tuners and the main TV is using another. So in that case, you couldn't watch one show and record another on the main TV UNLESS you turn off the other TV to free up the 2nd tuner. I was told I could watch an OTA channel (from the OTA tuner) and record 2 sat channels (one from each sat tuner) but I haven't tried it.
I think I have figured out that to watch a different channel on both TV's, I have to have the receiver in Dual Mode. Single Mode sends the same channel to both TV's.
NOW to try and figure out what Record Plus is.