My wifes uncle has a couple episodes taped from the original run...I borrowed the tape as I am a huge M*A*S*H fan and was disappointed that I did. The show wasn't funny, and it seemed very sub-par compared to the M*A*S*H series.
It was Klinger (with his wife), Potter (we didnt see his wife) and Mulcahey.

One funny part though was when Potter was trying to reach Mulcahey through Mulcahey's sister, the nun.
"I'm looking for your brother, sister, the Father".