One Leathery Step Beyond

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From what I've seen The Cuckoo Waltz gives lie to the notion that British TV comedy is inherently superior to American.  But when you've got a trio of leather lovelies shaking it to One Step Beyond by Madness, I'm willing to overlook many comedic sins.  The bootage in this is....uncertain. All three are certainly wearing boots, the shaft-height and tucked/untucked status is harder to determine. But it's the Heavy, Heavy Monster Sound! This is s04e03 and probably aired in 1980.