One of the funniest short discussions I recall (Like "Who's on First") was when Doc said about getting a little lot and Festus said you could have a little little and a a'lot a'lot, but not a little a'lot.
I also recall the episode "Snow Train" with (IIRC) a Burlington Northern steam locomotive. One of the talk show hosts was discussing this with one of the actors. Basically, it was to be mid-winter and the train was to get stuck in a snow drift. Local Indians worked as extras. There was a short warm spell and the snow was melting off. and that just did not happen in deep winter. The film crew was scrambling to get the filming completed before the snow melted through and the extras thought the whole situation funny as heck.
Doug vV