
Visible crew/equipment: While Lucy starts taking notes about Ethel, Fred walks in and soon asks, "What's going on this booby hatch," then just as Lucy rushes back to the desk, we can see the end of the set wall and there's some kind of partition in front of the kitchen set. (00:02:35)

Visible crew/equipment: When Lucy tells Ricky, Fred, and Ethel that she made a carbon copy of the novel they just burned in the fireplace, the actors' tape marks are visible on the carpet when Lucy says, "Pardon me," in the wideshot. Then later, when Ricky, Fred, and Ethel walk in while Lucy's typing up her sequel, they stand at tape marks again. (00:11:05)
Answer: According to Snopes.com, there is no definitive answer, but the mid-1960s is the most verifiable date with "The Munsters" being cited as the first, although others claim "The Brady Bunch" showed the first couple seen in a double bed. An early TV show from the late 1940s titled, "Mary Kay and Johnny" is also thought to have shown the married couple's bedroom as having a double bed, although probably not with them in it. However, this was when TV was aired live, and there are no surviving episodes, only anecdotal accounts.
raywest ★
Something that is funny is that in the movie "A Christmas Story," they show the parents having two twin beds in their bedroom. In a real situation, they should have shown them having a double bed. Lucy and Ricky had twin beds pushed together in an early episode, which would have been pushing television boundaries in that time.