I first saw Blackadder on the BBC (in the UK) in the late 1980's. I was hooked from the start. All episodes, throughout the 4 series, are without a doubt the most clever programs ever written for television.
The structure of the 4 original series is brilliant.
The main character is certainly not someone you would want to meet in real life, but sure is funny as a comedy character! The characters changed a bit after this first series, as Blackadder became more aggressive and less goofy, and Baldrick became stupider. For some people, that's a good thing, and for some not so much. Either way, if you're a fan of good British comedy, and you haven't seen The Black Adder, then I suggest you check it out as soon as you get the chance, same thing with the later ones!