VALENTINES DAY (1964)

I quote from the old Arild movie forum, which is still existing, still long-time-dead :

Tony Franciosa did spank a little girl, Julia Benjamin,
in an episode of his early 60's sitcom VALENTINES DAY.
The episode is "Mama Loathes Papa".

I remember that episode well. The little girl, who was spoiled rotten, and her equally spoiled mother come to stay with Val after separating from the downtrodden man of the family. Val eventually gives the girl a "bop on the bottom." He then looks up the father and tells him to take back control of the family. (Hey, it was the 60's.) The father comes in at the end announcing, "I've come to get my pants back." He then drags his daughter off-screen for another spanking -- she tells Val that her father is much better at it than he is -- and then threatens his wife with the same thing if she doesn't come with him. (Hey, it was the 60's.) She challenges him but then thinks better of it and goes off to pack. (Too bad.)
I think the wife was played by Shirley Knight/ Joyce van Patten, but I'm not sure.