If your 322 is anything like my 625, then you should realize that the TV2 UHF/IR remote is either/or. Mine (one came with the 625 and I bought 2 more) are UHF/Pro 6.0 remotes. The switch activated by the reversible 1/2 key either turns on IR and turns off UHF, or the reverse. Both remotes and the receiver are set to remote channel 1. So, you cannot turn on the TV1 UHF mode without simultaneously changing channels, because you would have two remotes trying to operate two tuners via UHF camping on the same channel. My 625 wouldn't let me.
It took a bit of fumbling around with multiple remotes, but eventually I got my spare TV2 UHF remote set to both UHF (via the channel 2 key) and UHF channel 2, and the TV1 tuner set up the same way. My original TV2 remote remained at UHF channel 1. The only problem with this setup is that it's the opposite way that I intended, plus both remotes show a "2" and thus cannot be visually distinguished from one another.
I don't know what the problem is with a 6.3 universal remote; that should work. And with 3 colored keys offering 6 choices, and 4 switch positions under that key, it should allow you to set up anything and still distinguish between your remotes.
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