To mark the 80th birthday of Bruce Forsyth, the nation's greatest all-round entertainer, the BBC stages a one off spectacular at BBC Television Centre. Host Tess Daly is joined by Liza Minnelli, the cast of Billy Elliot - the Musical, Ronnie Corbett, Paul O' Grady, Jonathan Ross, Jools Holland, Miss Piggy, Jon Culshaw, Vernon Kay and the dancers from Strictly Come Dancing, who are all on hand to celebrate this momentous occasion.