Sir Lenny Henry has announced the sad reason why he's quitting Comic Relief as he hosts his last-ever show.The actor and comedian, 65, has become the face of the charity after co-founding it with Love Actually director, Richard Curtis back in 1985.The TV star revealed that he would be stepping down from presenting the show after 39 years during an appearance on BBC Breakfast earlier this year. His last time hosting Comic Relief will be tonight (Friday, 15 March) as he hands it over "to the new generation." Sharing the news he said: "I'm not going to be hosting anymore Comic Reliefs after this but I will make special appearances.