Episode 133 of "MacGyver"
s07e08 Good Knight MacGyver (2/2)
Title: Good Knight MacGyver (2/2)
Original Air Date: 11/11/1991 on ABC
Director: Mike Vejar
Writer: John Considine
Guest Stars: Christopher Neame (Duncan), Lynne Harbaugh (Cecilia), Harry Victor (Unknown), William H. Bassett (Ian M'Iver), Peter Allen Vogt (Unknown), Mark Holton (Unknown), Colm Meaney (Irwin Malcolm), Robin Strasser (Morganna), Christopher Collet (Unknown)
Plot Outline:
A genealogy investigation and a knock on the head takes Mac back to King Arthur's court, where he must use his knowledge to prove Merlin innocent of harming the King, find the fair Cecilia and foil Morgana's attempt to take over the throne.