I thought of Soupy Sales...but he wasn't a "TV character", same with Jack Benny, Milton Berle, etc...
Sir Graves Ghastly should be on the list....
Huh? Ghastly v. Elvira...Ghastly v. Elvira...yeah, I'll ponder that for a while. Not!.
LOL! I grew up near Detroit and I remember him well.Dracula in drag singing show tunes.