Twas the Pie Before Christmas

"Twas the Pie Before Christmas" is the sixth and final Christmas episode of the CBS sitcom The Bob Newhart Show, aired in the show's sixth and final season.

Synopsis
Bob finds himself with unhappy and hostile patients who refuse to attend his Christmas party when they are mistakenly informed of a rate increase at the height of the Yuletide season. One is moved to hire a pie-throwing service.