I love the BBC – but do think their recent Drama output is very poor compared to the US
I read an interesting article by a UK TV writer (who has written for the BBC). He basically said the issue was the BBC's choices of what drama to make is too commitee/ management led
The big US dramas get driven by a powerfull writer/ producer – which means an undiluted "vision" is more likely to make it to the screen.
Its a shame – as the BBC is funded by the license fee and not advertisers it should have the freedom to take some risks but it plays it safe time and again. Compare this to HBO in the US who have no ads but are funded by viewers subscription fees.
Having said that there are some good shows
Bodies a few years ago was very good, "the Street" is good. I've not watched "BeingHuman" but I've heard that is good also