Continuity mistake: Many times during the episode, Det. Tubbs and the other characters mention that Tubbs killed Calderone. This is not accurate. In the episode "Caulderone's Return pt. 2," it is actually Crockett that kills Calderone and not Tubbs.
When Irish Eyes Are Crying - S3-E1
Visible crew/equipment: During Crockett & Tubbs' first meeting with arms dealer Max Klizer, a boom mic can be seen at the bottom of the screen in one shot.
Revealing mistake: When Bobby Diaz gets shot by Glenn McIntyre at the end of the episode, it causes him to fire his Beretta at the jetty he's standing on. Despite being at very close range, the deck remains unaffected by the gun shooting it. He also lacks any gunshot wounds.
Continuity mistake: Crockett and Tubbs are in his original black Daytona Ferrari. That car was destroyed in the first episode of season 3 and they received the white Ferrari Testarossa in episode 2.
Down for the Count (2) - S3-E13
Visible crew/equipment: When Crockett, Tubbs and Switek enter the mall at the end of the episode to prevent the hit on Guzman, Philip Michael Thomas has been replaced with an older looking stunt double who tries his best not to have his face in shot by immediately taking cover. In the next scenes in the mall, Tubbs has disappeared completely.
Revealing mistake: At the end when Tubbs shoots a man that is using his wife as a hostage, there is no muzzle or blast coming out of the gun.