plug a product

Just last week I received an invitation, via email, to plug a product which would heat my swimming pool, if I had one, which I do not.

In particular, he cites Bette Davis as being the guest who "more than anyone, made it clear she was there to plug a product, not because she was, or ever would be, your buddy."

Originally a miniature monologue and preview of the guests, the segment expanded to include miniature skits and other ways to plug a product from one of the show's sponsors (better known as "integrated commercials," which are rarely repeated).