"Doublecross Valley" the episode in which Gene Autry spanks Gail Davis will show on the Westerns Channel this Friday at 7 PM U.S. Eastern Daylight Time.
The episode is from 1950 and is directed by George Archainbaud, who directed many Autry TV episodes and a number of classic western feature movies including several Hopalong Cassidy movies.
The spanking itself, for any unfamiliar with it, comes at the very end of the episode. In my opinion, it is a good one, at least for mainstream TV.