an Entity references as follows:
Blackadder's Christmas Carol, a one-off episode of Blackadder, is a parody of Charles Dickens' 1843 novella A Christmas Carol. It is set between Blackadder the Third (1987) and Blackadder Goes Forth (1989), and is narrated by Hugh Laurie. Produced by the BBC, it was first broadcast on BBC1 on 23 December 1988.