The 5,000 Fingers of Dr. T. (1953)
Snippets used in the intro.
Davy pretends to be a child and bursts into the programming meeting wearing the same "Happy Fingers" hat worn by the children in this movie.
In the opening, Matt Frewer wears a hat similar to those used in this movie
The basis for the dream organ
Poster in Sacha's apartment
"Ten Happy Fingers" heard
Gus asks the restaurant hostess if she has a reservation under the name of Dr. T.
poster visible in Lester's bedroom
Critic points out how this shockingly exists
referenced in clue and correct response in "Movie Numbers" category
Saul has the film playing on television.
Film is discussed, clips are shown