Just finished The Rose Field - the final installment of Philip Pullman's Book of Dust trilogy. A very satisfying conclusion I thought.
If you like themes of struggles against authoritarian regimes, the corrupt church, fear of a freedom of thought, fear of 'outsiders' corrupting our way of life, then I would give these and His Dark Materials a read.
I always find the first of the his Dark Materials to be aimed to a younger audience - but as they progress, whilst remaining (technically) young adult there are a lot of philosophical topics in there that us 'proper' adults can get on with.
I never watched the TV series - always afraid to watch things when I have enjoyed the books (also see Game of Thrones for this - can't watch until he gets round to finishing the book series (so never))