Saw a brilliant interpretation of 'The Importance of Being Earnest' in mid 1980's at Theatre Royal, Lincoln, by Hinge and Bracket, which some of you may recall from their Radio 4 days.
Unfortunately not on Youtube. Bit too early for World Wide Web, which only around the following decade. Not to be seen again following demise of Patrick Fyffe, sadly.
'The Importance of Being Earnest' was first thing I saw on stage, when we had a school outing to a performance. I had thought we went to Liverpool Everyman, but not possible as it was before Everyman's time. (According to Wiki, it only opened 1964)