Back in 1975, the entertainer Danny Kaye did a series of specials designed to introduce young people to opera, in much the same way that Leonard Bernstein did for classical music. Entitled "Danny Kay's Look-In at the Metropolitan Opera, the show gave viewers insight into what went on at the Met, from behind the scenes to on the stage.
Here's a clip from the the April 1975 show, featuring a wonderful opera parody with Danny and the great Beverly Sills. ◙