Only one that I see so far.

TVLAND Dec 21 11:00am
Series/Comedy, 30 Mins.
"Bob Has to Have His Tonsils Out, So He Spends Christmas Eve in the Hospital", Episode #7515.
Bob spends Christmas Eve in the hospital.

Cast: Bob Newhart, Suzanne Pleshette, Bill Daily, Peter Bonerz, Marcia Wallace, Patricia Smith, Larry Gelman, Pat Finley, Will Mackenzie, Jack Riley, Florida Friebus, Penny Marshall, Renee Lippin, John Fiedler, Noam Pitlik, Lucien Scott, Oliver Clark, Merie Earle, Graham Jarvis.
Director(s): James Burrows.
Writer(s): Tom Patchett, Jay Tarses.

Original Airdate: December 20, 1975.

That's been aired on every Merry-thon the past few years, I think. I want to see that one.

I can't believe I didn't check to see if a Bob Newhart Show episode was going to air. I bid on a VHS tape of the other two Christmas episodes on Ebay, but I was outbid. It annoyed me when TVLand would skip over the Christmas episodes this summer. I've still not seen any of them.