[s4e1] | Roswell That Ends Well

: References to "City on the Edge of Forever" and "Little Green Men".

: Explain the "rare" cause of time travel—a supernova's red radiation reacting with blue radiation from a microwave—which ensures the crew can't simply travel back whenever they want.

: The episode suggests a closed-loop timeline where Fry was always his own grandfather. [S4E1] Roswell That Ends Well

: Sight gags like the cat clock and Gil's Televisions.

: President Harry S. Truman’s portrayal as an aggressive, paranoid leader. : References to "City on the Edge of

The Subversion of Time Travel Tropes in Futurama

: Note that this is the 51st episode produced (a nod to Area 51) and won the 2002 Emmy for Outstanding Animated Program . II. Plot Summary & Context : Sight gags like the cat clock and Gil's Televisions

: Analyze the military's interrogation of Zoidberg as a parody of mid-century xenophobia and B-movie tropes. V. Conclusion