Frank Sinatra died on the exact same night as the series finale of what popular TV show?

Seinfeld is an American sitcom that originally ran for nine seasons on NBC, from 1989 to 1998. It was created by Larry David and Jerry Seinfeld, the latter starring as a fictionalized version of himself. Set predominantly in an apartment building in Manhattan's Upper West Side in New York City (although taped entirely in Los Angeles), the show features a handful of Jerry's friends and acquaintances, particularly best friend George Costanza (Jason Alexander), former girlfriend Elaine Benes (Julia Louis-Dreyfus), and neighbor across the hall Cosmo Kramer (Michael Richards). It is often described as being "a show about nothing", as many of its episodes are about the minutiae of daily life.

Frank Sinatra died during the West Coast airing of the finale. His daughter Nancy said she had planned to visit him prior to his death but got caught up watching Seinfeld reruns prior to the finale—"I got so involved watching the damn show that I never got over to my dad's." Sinatra was able to get to the hospital quickly—"'There wasn't much traffic,' said Fire Chief Mike Smollen, noting reports that the final episode of Seinfeld kept L.A.'s streets nearly deserted between 8 and 10 that night."