[pictureon]

I'm working on a 18 unit building to feed one FTA channel to each appartment using only one FTA receiver for all. The receiver would stay on one channel and all other appartments would get the same channel. I'm using a splitter to do so, the problem is that some appartment have cable service. I was wondering if there is a way to deliver that one channel along with the cable service to the same TV. What do I need to use. I was thinking to running 2 cables to each appartment and use AB switch, but that would be too much work. Any idea?
Thank you