Green With Evil (1): Out of Control - S1-E17
Continuity mistake: Up until Green No More in Series 2 (where the Green Ranger powers are destroyed), the Green Ranger's overshield constantly changes between solid-looking metal to flimsy-looking cotton. This is the most obvious difference between the Japanese and US footage.
Continuity mistake: Brisco's hands are folded close to his chin as he talks to the Generalissimo in the frontal shots of him, but then a rear shot shows him raising his hands form the table to fold under his chin.
Continuity mistake: In Subterranean Sonic, Sonic's arms turn blue in one scene when he's talking to Spelunk about politics.