I’m an older millenial that identifies closer to Gen X. I think mine would be … Will Smith crying to Uncle Phil about his dad on Fresh Prince? That was pretty iconic. Wasn’t a good bye or finale one though.
Seinfeld finale was kinda bleh. I skipped Roseanne, Friends and Frazier’s finales to be honest and the fact no one references them never made me catch up. The Simpsons seemingly won’t die. I’d say Futurama but like, it keeps coming back with declining quality. I guess I can’t choose?