This Segment of the show is with Gary Morton, the husband of the late Lucille Ball and Altovise Joanne Davis, wife of the late Sammy Davis Jr.. This episode of 'The Joan Rivers Show' looked at the spouses of famous people. Joan does not mention here the fact that she was on an episode of "Here's Lucy" in the early 1970s towards the beginning of her career.

From WikiPedia:
The Joan Rivers Show is an American talk show hosted by comedian Joan Rivers that premiered on September 5, 1989 in broadcast syndication. The show aired for four seasons and ended in 1993. The show was nominated for numerous Emmy Awards, with Rivers winning the Daytime Emmy Award for Outstanding Talk Show Host in 1990. The series was produced by PGHM Productions, Joan Rivers's production company, and distributed by Tribune Entertainment.

In the mid1990's the show was repeated on the E! TV network for several months. In early 2019 the show began reairing on the Decades TV network, and it became available on the Roku streaming device.
Rivers had previously hosted latenight talk show entitled The Late Show with Joan Rivers which got canceled in May 1987.