I have a new home and everything is prewired into a box in a closet. I have a 622( family room ) and 625 ( bedroom ). I have the 625 sending to the closet distribution box for tv2 on chanell 73. It goes to every room in the house except the family room. I have an extra line from the family room to the dist. box. I know I can setup tv2 on my 622 to a different channel than my 625. Can I just use an antenna splitter backwards in the dist. box to combine both box out signals and send them for home distribution? I would like to have the choice of watching my 622 or 625 in all my other rooms. If not what combiner would I need, or is this not possible? Thanks in advance for the help .