This series blends familiar Arthurian themes with major original twists. Episodes that stick closest to traditional legend include Season 1, Episode 1 (the court’s foundations) and Season 2, Episode 3 (the tournament and courtly honor themes). The bigger departures come in Season 1, Episode 9, where a new political faction is invented, and Season 2, Episode 8, which reworks a major relationship for dramatic effect. If you want a direct comparison, watch one tradition-heavy episode and then one of the more original episodes back to back to see which themes were preserved and which were altered for the show’s narrative needs.