The MX-500 (or any other universal remote for that matter) can only control IR equipment. If your control is via RF or UHF, only the remote that came with the component can control it. If you can control the 322 via IR from your second TV's location, then preprogrammed code 122 in the MX-500 should work.

For future reference, questions about the MX-500 should be posted in the "Universal Remote Control" forum.

Mike
www.SurfRemoteControl.com