Don't Make The Straight Man Funny.
So here's the second Microsoft ad in very long form and it's funnier. It has more characters and a better script, though I'm not sure what it has to do with Microsoft per se. Yet they still screw it up at the end by trying to get Bill Gates to be wacky (and I'm sure that will feature in the thirty second version). When he's the straight man here, he's funny. But, as with all marketing, when you try to suggest that something or someone is different from how we know them to be, it just gets embarrassing.