It's common enough to observe that the BBC is pro-EU in its coverage. I'm not trying to prove it here though. I am just pointing out that pro-EU bias goes hand in hand with anti-American bias.
Marc at USS Neverdock has given a good fisking to a report by Paul Reynolds, whose sense of history sometimes seems to have come from reading anti-US graffitti on toilet doors in some dingy banlieue of Paris.

BTW, I watched some of the Prime Minister's Questions on the Daily Politics this lunchtime, and it was clear to me the BBC were on best behaviour. This programme was always a flagship with a right-of-centre host, Andrew Neil, to win back the legions of disaffected viewers who felt the BBC too one-sided. Today's programme was without Neil, but it had the most balanced journalist (see Nicholas Vance's 'Report Card') they have, Mark Mardell, and a commentariat that included Matthew Parris and a UKIP man, as well as a Green Party representative. In other words, this was a very carefully composed programme on the basis that the BBC must be seen beginning this referendum (still a long, long way away) process on the right foot.