It was based on A Christmas Carol, but was staged as sort of like a rehearsal or perhaps the actual play happening onstage.  The director was sitting in the audience speaking to/correcting the actors as they went through the production ("Why did you move the halltree?"  "Because it wasn't where it was supposed to be." Ect.)  I think all of the actors were also acting as dressers backstage and had numerous parts in the production, too.

 

Does this sound familiar to anyone?!