I didn't watch the Beatles that night 50 years ago (at least not that I remember) but the Beatles were a part of my life. I can remember listening to their albums over and over again. Watching their movies. Reading everything I could find about them. I never got to see them live, but I've been to three McCartney concerts. One in 1976, one in 2005, and one last year (or was it the year before).
I don't actually have a favorite Beatles song. I love so many of the songs from Help and a Hard Day's Night. I'll share "You've Got to Hide Your Love Away."