Since when was it seeooper?

Well? Since when was it?

Since when did we have "Seeooper Tuesday" and "Seeooper Candidates"?

(American elections feature flag-waving adjectives too)

I'm sure the Queen liked watching SeeooperMan Returns and I dare say she has a bowl of seeoop with her creeootons, but come on!

I may be a northern lad, used to kicking footballs in ginnels and drinking beer in't Bird 'i'th Hand, but I don't think I've ever heard - face-to-face - anyone pronounce "Super" like that.