Edinburgh fringe comedy round-up
From David Baddiel and Alex Horne to Katie Goodman and Claudia O'Doherty, Stephanie Merritt reviews the best comic turns from the first week of the fringeThere's nothing quite like the sense of expectation that builds at the beginning of the fringe. All the posters are pristine, the performers' faces are full of hope, no one's got scurvy yet and everyone's hoping to stumble on the next Daniel Kitson or Tim Key.One of…