Each of the given scenes is partially from the last season of the sitcom Cheers, but each has been altered in that the lines for Cliff, played by John Ratzenberger, have been replaced by lines that might be delivered by one of Ratzenberger’s many characters in Pixar films.
The Cheers characters’ names have been replaced by first initials, while the Pixar characters’ lines are given as a sequence of question marks, with one question mark replaced by an exclamation point. The number of question marks indicates the length of the character’s name (helping to disambiguate, for example, Tom from Foreman Tom and Yeti from The Abominable Snowman, as his character was listed differently in two movies), and the exclamation point indicates which letter should be extracted. The characters and episodes are, in the order given (which is chronological by Pixar movie):
Ordering the extracted letters by episode title forms the phrase GUEST ROPE, the answer to this puzzle.