All five of my reviews on the Blackadder saga are now available at Television Heaven, covering the entire story from beginning to end, with the Christmas and New Year specials up just in time for the festive season. Links are below!
The Black Adder - the first series and the pilot episode
The Specials - Blackadder: The Cavalier Years, Blackadder's Christmas Carol and Blackadder Back and Forth (plus a round-up of the sketches)
If you fancy watching the short form and sketches, there's a YouTube playlist here for you right here, even including a Children in Need appearance that ties into Blackadder the Third.