I had to go back a couple times and make sure this wasnt a thread that was bumped from 2001 or something...

Is there some sort of crazy budget constraint in play here? is this why we're making this way more complicated than it is?

An MX-780 and a MRF-350 is all you need in this scenario. the TV's can be the same. The Cable boxes can be the same. you just assign the ports to their devices and call it a day.

So unless you left out a whole bunch of information, why isnt this solution thats been around for over a decade (with varying versions of the remote, but essentially the same RF receiver/IR Router) not a no brainer?