Television Bedfellows

There was some debate on a live recording of a podcast I watched as to which "TV couple" were the first to appear in the same bed together. Some say it was "Mary Kay and Johnny" on the defunct DuMont Network, others think it was the "Flintstones" or "Bewitched". There's an "in-between" I noticed, while watching my "Adventures of Ozzie and Harriet" DVD season sets, like this episode from December 2, 1955...