What was the first radio Situation Comedy?

Answer:

The first situation comedy dates to January 12, 1926 with the broadcast of Sam 'n' Henry on WGN in Chicago. The 15-minute daily program was revamped in 1928, moved to another station, renamed Amos 'n' Andy, and became one of the most successful sitcoms. It was also one of the earliest examples of radio syndication. Like many radio programs of the time, the two programs continued the American entertainment traditions of vaudeville and the minstrel show.

Part of comedy has always been the exploitation of stereotypes and offending someone. A comic brings a family member into a comedy act, the odds are the family member is going to get pissed. If a group of people becomes offended then.........

But to those who didn't feel offended by Amos and Andy, it was a beloved sitcom.