Seventeen years ago Ellen DeGeneras and her TV character, Ellen Morgan, made TV history by coming out publicly over an airport public address system.
The video cannot be embedded, but you can go to the link below to view it. It is still both funny and endearing after all these years.
Ellen Comes Out - "The Puppy Episode"
And gay actor Jeremy Piven as Spence Kovak on Ellen's Show is worth a mention here too. I'm sure I remember him as having a hairy chest in one episode when he emerged from a bathtub, I think. You must know him as Mr. Selfridge on the PBS/BBC series.