Obviously this spin-off of the Guys in Drag Thread

one example is "Family Matters" when Laura dressed up as a guy to get a deal on a car

Roseanne dressed in drag in one of her Halloween episodes.

Lucy & Ethel

Enough said.

when Jo dressed up as Peter Fonda for a Halloween party alongside Blair's Jane Fonda on The Facts Of Life

On Alice, Alice dressed as a man a gangster type.

What about Fran on The Nanny when she dressed as a man to get into Maxwell's club.

and on Golden Girls Dorothy dressed as a sheriff and Sophia dressed as Sonny Bono

Marcia Brady dressed as a man in a bowler hat and old-style clothes on a Brady Bunch episode.