Blackadder is a series of four period British sitcoms - The Black Adder, Blackadder II, Blackadder the Third and Blackadder Goes Forth - plus several one-off instalments, which originally aired on BBC1 from 1983 to 1989. All television episodes starred Rowan Atkinson as the antihero Edmund Blackadder and Tony Robinson as Blackadder's dogsbody, Baldrick. Each series was set in a different historical period, with the two protagonists accompanied by different characters, though several reappear in one series or another, e.g.
https://en.wikipedia.org/wiki/Blackadder