Surely the scene with Richard Griffiths fluffing the audition would've worked better if they (the American producers) had asked him to do it in an American accent and he'd protested saying that he couldn't do one? Then had him really mangling it with a ridiculously over-the-top Yankee accent.
Interestingly, a lot of the media, including that other comedy website that we dare not speak it's name, C*****e, is calling this "Matt Le Blanc's new sitcom" which considering he wasn't even in the first episode seems a bit rich.