Got 2 new Vip722k's installed in 2 different rooms. Not thinking at the time I should have had both installed in the LR on the HDTV and used one to run the CRT in the bedroom. Now I want to do this myself. I have the 2 triplxers that came with the 2 receivers. I will use one on the one receiver supplying the BR but can I use the spare trplexer in place of the necessary diplexer in the basement? I hope this makes sense.