Connect a coaxial cable to the TV connector on the A/B switch and to the "CABLE" or "ANTENNA" connector on your television.
Connect another coaxial cable to the UMTV output on the wall-mounted face plate and to the A side of the A/B switch.
Repeat with the CATV output and the B side of the A/B switch.
You can now watch UMTV when the A side of the switch is selected, and Michigan Cable Network when the B side is selected.
Your TV may have a button, switch or on-screen menu setting which allows you to select TV or CATV. Make sure it's set to CATV; otherwise, you may have problems tuning in channels above 13.