Will UK Gold now be permanently available at the Royal Opera House? Or was Italian TV being beamed into the auditorium last night by mistake? The 1970s scene before us actually just meant the return of Richard Jones’s inspired sitcom treatment of Ravel’s L’Heure Espagnole and Puccini’s Gianni Schicchi to Covent Garden. Even before the curtain had lifted we were raising a 1970s titter, being prepped for a return to that decade of naughty slap and tickle with an enormous front cloth image of a Viz-like pair of breasts, bursting from their polka-dotted bust darts.