Conventional wisdom, for many years, went that American audiences and British humour just didn’t mix. Apart from legions of cultish fans who could quote Python chapter and verse, and PBS viewers glued to re-runs of Upstairs, Downstairs and Fawlty Towers, most American audiences seemed either to not get it, or just not care. But the recent pond-crossing successes of Sacha Baron Cohen and Ricky Gervais suggests that maybe tastes are changing on this side of…