Was idly looking at the cable company’s thin menu of free On Demand movies last night, and what did I see? Frank Zappa’s 200 Motels, which I actually saw in a theater when it was released in 1971. Here’s the 1971-vintage Mothers of Invention from the flick, performing “Mystery Roach.”

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Ed Kilgore, a contributing editor of the Washington Monthly, is a columnist for New York.