Why is it so gratifying to watch famous people get hit in the head with a fake fish? You know the fish is coming, because that's the premise of the joke: John Oliver using a salmon cannon (yes, that is a hilariously real thing) to magically fire fish at celebrities. And yet each time that salmon comes flying into frame, it brings with it a frisson of mindless delight. What you are about to watch is arguably the most satisfying addition to the genre since Hans Moleman's "Man Getting Hit By Football."

John Oliver brought the triumphant first season of Last Week Tonight to a close yesterday with a winning segment on the lottery, "the second-best use of magic marker on ping-pong balls after Kermit the Frog's eyes." This is some good stuff right here: