It is, and always will be, the greatest comedy ever. *Points at signature*
The second series was the best, in my opinion.
I've got a copy of Blackadder: The Whole Damn Dynasty, which includes all the scripts plus some bonus material, like Baldrick's family tree and the Prince Regent's laundry list.

...A mere post is incapable of expressing the pure joy and admiration that dwells within my heart thanks to this greatest of TV shows.