Everybody Loves Raymond - Season 6 Episode 17 -

Thinking it would be hilarious to show the partygoers a typical day in the life of Frank and Marie, Ray and Debra do a dead-on impersonation of the two that brings down the house at the party. But, when Frank and Marie turn the tables and do a "Ray and Debra" imitation, Ray and Debra don't find it funny at all.