Sabrina: The Animated Series (1999)
S01E54 Hexcalibur
Episode Overview
Sabrina and Salem accidentally obliterate Zelda's ancient magic tome, originally penned and signed by Merlin. In an attempt to rectify their mistake, they journey back to the Middle Ages, only to overshoot their destination and land in Merlin's childhood, where he is just a novice in magic. There, they encounter young Merlin and his equally inept friend, King Dude Arthur. Sabrina and Salem mentor them, and together they discover the legendary sword Excalibur, essential for thwarting the dark forces threatening Arthur's claim to the throne. After emerging victorious, Merlin gifts Sabrina a new magic book to replace Zelda's. However, when they inadvertently destroy all of Zelda's remaining books, their wild adventure begins anew.