Shephard quits Xtra Factor

Ben Shephard has quit ITV2 X-Factor spin off The Xtra Factor, reportedly because he was "not that happy" when Dermot O'Leary got Kate Thornton's job. Whether that means he'd got his eyes on the flagship presenting job himself, or just that he doesn't like O'Leary, I don't know. Perhaps he's worried that with someone who can actually present doing the main show, his presenting skills would be shown up on the spin off? Or perhaps that's unfair - I don't think I've ever seen a Shephard presented show in my life - he might be brilliant for all I know. I'm sure he looked pretty good next to Thornton.