A very brief Hansard trawl
This, from 1960, in a debate about the touring programme of the Covent Garden Opera Company:
I am NOT making this up. Nor that Moss Side was represented by the blue team back then.
And there's more:
Mr. James Watts (Manchester, Moss Side) ".....All of us who live in the area have from time to time witnessed the whole of the Wagnerian sequence of operas— "The Ring", and so on—and we have heard all the Italian operas in these theatres in Manchester".
I am NOT making this up. Nor that Moss Side was represented by the blue team back then.
And there's more:
The Financial Secretary to the Treasury (Sir Edward Boyle) "For example, I am told that the cast for the current production of what are popularly known as "Cav and Pag", or "I Pagliacci" and Cavalleria Rusticana", includes 106 men, 68 women, 25 small boys, 13 small girls, and a pony, quite apart from the orchestra; and a whole battery of green rooms, wardrobe rooms, bathrooms and workshops is needed backstage to keep the cast and their settings and accessories in good order".
Mr. Charles A. Howell (Birmingham, Perry Barr) And the pony.
Sir E. Boyle Yes, indeed.