I'm just about to watch the last two episodes in about 10 mins time Hermione.
Personally for me it was the BEST thing on British TV last year (yep even over Doctor Who!!!).
I can't wait to see what happens to Sam. Personally I've always had a hunch he is mad and just dreams of the future, but it really could go either way...
More after I've watch the last two!
Mike
PS I have a few friends in the police force and they say, that those who remember the early 70's say it really was like that... it does show the great bounds (though not quite great enough) that have been made in the last 30 years