[xrmusn]

To illustrate how clear their signal was, they showed a pin dropping.
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I remember that ad.
Shot in a bowling alley wasn’t it?

I got my ‘start’ setting pins in a bowling alley.
Complete with treadle and pegs to set the pins on.

The ONLY automaton was the pin setters, usually one to a double lane with a hole between so you could easily ‘service’ both lanes.

[BlueLancer]

"Complete with treadle and pegs to set the pins on."

Graham Chapman: Trouble at mill.
Carol Cleveland: Oh no - what sort of trouble?
Chapman: One on't cross beams gone owt askew on treddle.
Cleveland: Pardon?
Chapman: One on't cross beams gone owt askew on treddle.
Cleveland: I don't understand what you're saying.
Chapman: (slightly irritatedly and with exaggeratedly clear accent) One of the cross beams has gone out askew on the treddle.
Cleveland: Well what on earth does that mean?
Chapman: *I* don't know - Mr Wentworth just told me to come in here and say that there was trouble at the mill, that's all - I didn't expect a kind of Spanish Inquisition.