It’s “I Love Lucy” Day
October 15, 1951 "I Love Lucy," premiered on CBS-TV starring Lucille Ball and Desi Arnaz, Vivian Vance, and William Frawley. New episodes were produced for six years, and thanks to reruns the show will be playing on a TV somewhere until the world comes to end.
By the way did you know that Desi Arnaz invented the rerun. During Lucy's pregnancy with Desi Jr., Daddy Desi came up with idea re-airing episodes from the first season to give Lucy some rest.