Season finale
Blackadder: "The Black Seal" (1983), "Chains" (1986), "Duel and Duality" (1987) — Along with "Goodbyeee" (1989), the final episodes of the Blackadder series took a liberty that many series would be unable to take, by killing off the major characters (apart from in Blackadder the Third when only Prince George died). This reinforces the idea that the four series stand alone from each other, and the series' general black humor.