yes but it requires you to UHF convert the first remote. That means having a UHF remote (model 6.3,6.4,and 21.0 only) with the proper tab in it. Also you can turn on the TV-1 on the remote distribution port (menu,6,1,5). The IF remote will still work BUT you need to have it on the same remote address as the TV-1 UHF remote.
P.S. Don't leave the address set to the factory default of one. P.P.S. If you press #^ (^=up arrow) before you enter the address you will end up with an address 16 higher (example 4 + #^ = address 20).