Vicki Lawrence had a recurring role as Sgt. Alvinia T. Plout, whom the title characters met during a short stint in the Army. And after one appearance, executive producer Garry Marshall got an idea.

“He said, ‘Have you ever thought of doing your own show?” Lawrence recalls. The pair wound up doing a few pilots together; alas, none were ordered to series.

https://tvline.com/gallery/vicki-lawrence-photos-mamas-family-the-cool-kids/#!3/lawrence-laverne-shirley-small/

That would have been cool!

Aw, too bad it never came to light but at least she had "Mama's Family"

Sgt. Alvinia T. Plout is some of my least fav L&S episodes - but on Carol Burnett she is GREAT - IMHO