The “Cone of Silence” bits from Get Smart were some of the funniest TV comedy ever. Edward Platt (the Chief) never failed to make me laugh; and of course you had Don Adams, too.
It made me laugh then, and it makes me laugh now. They worked up several dozen variations on this theme, every one of them hilarious. YouTube has a bunch of them, if you want to laugh yourself silly.
Get Smart ran from 1965 to 1970. That’s a lot of Cone of Silence gags!