Xantech rt - 8 allows you to select which of the televisions is going to get the ir code. You will need: 1. An ir sensor 2. A programmable remote control 3. A Xantech rc-68 remote for the source codes 4. Emitters for each of the tv's with masking shields to prevent leakage from one to another.
The unit essentially has 8 ports on it; you select which port gets the signal by laying down a prefix code, and then following up with the tv code.