WSUN-TV Channel 38 in St. Petersburg/Tampa, Florida, began broadcasting at 4:15PM on Sunday, May 31st, 1953 with a dedicating ceremony featuring Samuel G. Johnson, mayor of St. Petersburg, Curtis Hixon, mayor of Tampa and Herbert Brown, mayor of Clearwater . At 4:45PM a 15-minute NBC newsreel was presented and then the evening’s programming began in earnest with an installment of Hopalong Cassidy.
WSUN-TV Debut Line-up – Sunday, May 31st, 1953 
4:15PM – Dedication Ceremonies.
4:45PM – NBC Newsreel.
5:00PM – Hopalong Cassidy.
6:00PM – Terry and the Pirates.
6:30PM – Kiddies Karnival.
7:00PM – The Jack Benny Show.
7:30PM – Liberace.
8:00PM – Jackson and Jill.
8:30PM – Be There With Bear.
9:00PM – Film Feature (Mr. Muggs Rides Again, 1945)
10:00PM – March of Time (“Make Way for the Queen”)
10:30PM – Local News.
10:35PM – Your Home Theatre (Trade Winds, 1938)
Some notes on the first day’s programming: Kiddies Karnival was a locally produced children’s show; the episode of The Jack Benny Show was the season finale with guest Gisele MacKenzie; Jackson and Jill was a syndicated sitcom starring Helen Chapman and Todd Karnes; Be There With Bear was a film about the Indianapolis Speedway. WSUN-TV signed off in February of 1970. During its twenty years on the air, it was affiliated briefly with both CBS and ABC. Otherwise, it was an independent station that acted as a secondary affiliate for all four networks, airing programming from ABC, CBS, NBC and DuMont.