The Trap Door

Everything About Fiction You Never Wanted to Know.

The Trap Door was a British Claymation show that first aired in 1984. The show was set in a Haunted Castle owned by an unseen creature known only as "The Thing Upstairs". The main character was this creature's servant, a blue blob named Berk, who lived in the castle's lower floors along with his friends, a skull named Boni and a strange spider-like creature named Drutt. In every episode, the titular trap door would open, and a monster would come out, usually to hinder Berk in his toils. Each episode lasted around five minutes.

Tropes used in The Trap Door include:

Berk: You got any bright ideas, then?
Rogg: Well, you could um... er... don't know.
Berk: [addressing the audience] The sad thing is, that you've just heard the brightest idea Rogg's ever had. Ever.

Boni: Guess what's going to happen next.
[The Trap Door opens and a green monster slithers out.]
Boni: [smugly] What did I say?