C4 9.00pm Britain's Favourite Hoaxer Profile of prankster Karl Power, who first attracted media attention in April 2001 when he famously tricked his way into the Manchester United line-up as they posed for the team photograph ahead of their European clash with Bayern Munich. He has since gate-crashed other important sporting events and this programme reveals exactly how he pulled off each of his scams with partner-in-crime Tommy Dunn.