Howww-dy! Minnie Pearl for Spic 'n' Span (1978)

 While Spic 'n' Span was still part of the Procter & Gamble family, the company hired comedienne Minnie Pearl (Hee Haw) to do some ads for the product. Check this:

Oddly, I don't recall this airing during Hee Haw, though.....