I had the misfortune to see "Nurse Jackie" the other night (was with someone who likes it) - absolute tosh - most improbable story, rubbish acting. Don't bother.
I've only seen two of these, and I won't again. Roger and Val is not so much funny as a wry observation of real life, something to pass half an hour inoffensively - Nurse Jackie was absolutely dreadful, not remotely funny, IMO.