He's 90? Surely not!
The none-more-Cool-Britannia and slightly saucy adventures of The Avengers (these Avengers, not these Avengers) could be a textbook example of genre shift and increasing Weird Level, starting as a straight avenging-hero show with Steed as the Mysterious Man who helps out, then Steed and Gale, then Peel, then King as spies, superspies and sharp-dressed superheroes. By the end, it was often a jaw-droppingly insane work, a brightly-coloured champagne-popping Adventure! game in something little resembling then-contemporary London. Would that there were more like it.