If you don’t own a DVD player and you have one of those new-fangled iPoddy thingies, then you’ll be pleased to know that you can buy Blackadder Remastered on iTunes for the princely sum of £19.99 (I’m not sure how much it costs in foreign money). It contains all the episodes from all four series and Blackadder’s Christmas Carol. Unfortunately, it doesn’t contain any of the additional content found on the DVD. In my opinion, it’s a waste of money.
But if you really must have it, go get it here.