The third biannual sports-meets-comedy smashdown returns to Edinburgh to cause even more mess, blood and hilarity. Top international comedians compete in stupid, inadvisable events. Watson hosts, frantically as usual. Later, venue staff clear up with stoical expressions. Past contestants have included Sam Simmons, Adam Hills, Angela Barnes, David O'Doherty, Felicity Ward, Katherine Ryan, Jason Byrne, Tim Key and also a bunch of people we booked so late that they had no clue what was going on. This year: who knows?