GREASE (1978) remains one of the defining movie musicals. The songs, the energy, and its larger-than-life vision of the 1950s have kept it a cultural phenomenon for nearly five decades.
The final episode of BOY MEETS WORLD (1993–2000) has an unfair amount of emotional damage packed into its last few minutes. Mr. Feeny saying goodbye to the class feels like a teacher saying goodbye to an entire generation that grew up with the show.