The original series of The Blackadder is one of my favourite comedies ever made, ok it may be completely different from the other Blackadders and in some respects it maybe isn't as funny as the later series, but as a stand alone sitcom this is brilliant.
The series gives an alternative take on history, with each episode following on from the other. The character of Blackadder is far sillier than his future descendants with Rowan Atkinson's skill for physical comedy used throughout, but his aim of wanting to outsmart the 'rulers' and 'commanders' is the same, and as always Baldrick, albeit smarter, is right behind along with the fabulous Lord Percy. Rowan Atkinson's skill for physical comedy is used very well.
Another noticable difference between this and the later series is the overall quality of the production. THe Blackadder was film entirely on location and this gives the comedy a great edge allowing it to set up some extravagant set pieces and plots within each episode. The supporting cast for each episode is always in double figures and you'll see many a familiar faces that crop up in the full Blackadder series over the years including Rik Mayal, Marim Margoyles and Jim Broadbent.
Give this series a go, and if you watch it with an open mind you'll absolutely love it.