Spongebob Squarepants - Opened or Closed
In the episode where SpongeBob invents Pretty Patties, after SpongeBob places the open sign on the desk for the first time the show will shift several times into the future showing SpongeBob still waiting for his first consumer until he's dead. (Later you find out this is only a dream.) As soon as SpongeBob wakes up from the dream the open sign is gone! Somebody alert the president!