Blackadder: Back & Forth finds it has actually worked. They are now in the Cretaceous Period, where they are attacked by a "Tyrannosaurus". They throw away their wager items but are eventually able to knock it out using the underpants. Blackadder comments that one of lifes mystery has been solved and that the dinosaurs were actually wiped out by Baldrick's underpants. Baldrick admits that, as he never got round to writing the dates on the dials, they cannot return to the present. Blackadder and Baldrick return to Blackadder Hall but during the reign of Queen Elizabeth I (Miranda Richardson) who, mistaking him for his
Blackadder Goes Forth Wallis and Lee Cornes, who had played minor roles in prior series, appeared briefly again in the fourth series as well. This series of Blackadder was one of the first television programmes in Britain to be made and transmitted with stereo sound, using the NICAM digital system, even though most viewers could only afford, or were only able to receive due to their location, the standard FM mono audio carrier signal. The series was directed by Richard Boden and all interior scenes were shot at BBC Television Centre in front of a live studio audience. Rowan Atkinson recalls that the