The Shadow of the Tower (TV Series 1972) | A Fly in the Ointment (Episode 7)

Episode 7: Addle-brained Sir John Kendall and his dim-witted nephew devise a ludicrous plan to kill the King with a harmless ointment from phony astrologer.

Episode 8: https://rumble.com/v70hiue-the-shadow-of-the-tower-tv-series-1972-the-princely-gift-episode-8.html