Continuity: Season 3, "Turnabout for Traitors": The large black oil stain that Kelly's shirt acquires during the brawl in the alley completely disappears a short time later.

Plot hole: Season 3, "Happy Birthday Everybody": After a chance meeting in Mexico, Tom Matthews invites Kelly and Scott to his home for dinner. The address is unlisted, neither knows where the other lives or is staying, and no address or phone information is exchanged before they part. But Kelly and Scott somehow find the house anyway.

Continuity: Season 3, "Pinwheel": When Wellington drags Melanie into the room where the Chinese buyer waits, he's holding her by the elbow. But when the shot cuts to a wider angle, her arm is instantly down at her side instead, and Wellington is standing apart, no longer touching her at all.

Visible crew/equipment: Season 3, "This Guy Smith": As Kelly is getting dressed in the hospital room, someone's shadow strolls across the floor in front of him. Scott is standing still, and no one else is there, so the shadow must belong to a film crew member.

Continuity: Season 3, "This Guy Smith": In the hospital, Kelly's pajama top is open in most shots, showing the bandages across his ribs. But the pjs are closed and covering his chest completely in other shots.

Revealing: Season 3, "The Seventh Captain": During his scuffle with the intruder, Kelly's stunt double's face is visible in several shots.

Continuity: Season 3, "The Seventh Captain": Scott is wounded in the right ankle during an underwater fight. But in the hotel room afterward, he's bandaging his left leg.

Audio problem: Season 3, "Rome... Take Away Three": Scott and Kelly are talking as they wait to cross a Rome street - but Kelly's lips are completely out of sync with his voice.

Continuity: Season 3, "Rome... Take Away Three": At the end, an overhead shot of Scott and Kelly shows them at the bistro table seated more than a foot apart. When we cut to a ground level shot, however, they're shoulder-to-shoulder.

Continuity: Season 3, "Tonia": Scott enters the cantina wearing a yellow sweater. When he rescues Tonia from the bar brawl, his sweater is blue. In the next shot, it's yellow again.

Revealing: Season 3, "Rome... Take Away Three": Kelly finds Tilde dead on her couch. But when he touches her, the "dead" woman's eyelids twitch.

Visible crew/equipment: Season 2, "Get Thee to a Nunnery": When Kelly and Scott get out of the taxi at the castle, the entire camera crew and lighting array can be seen reflected in the car's doors.

Continuity: Season 2, "Mainly on the Plains": While they sit side-by-side on the park bench, Don Silvando places his hand on Kelly's shoulder. The camera angle reverses, and Silvando's hand is immediately in his lap - and Kelly's shoulder, which should still be in frame, has disappeared.

Continuity: Season 2, "Mainly on the Plains": The land rover Kelly and Scott are driving through the back country is covered with dirt and dust. But during their drive, it somehow washes itself completely clean.

Audio problem: Season 2, "Mainly on the Plains": The stick joust is supposed to occur in the middle of the Spanish countryside far from civilization - yet we can hear motors running in the background.

Continuity: Season 2, "To Florence, With Love, Pt. 1": Maria the chamber maid is sitting down when Scott and Kelly start questioning her. But when the shot cuts, she's suddenly standing up.

Continuity: Season 2, "To Florence, With Love, Pt. 1": At the Florence train station, the luggage on the cart that surrounds the painting changes positions between shots, even though no one's touched it.

Factual error: Season 2, "The War Lord": She's just been drugged and then hauled through a very dusty ancient temple on a harrowing chase - yet Katherine emerges at the end with her white clothes absolutely spotless.

Continuity: Season 2, "Night Train to Madrid": In the opening train compartment scene, two consecutive shots don't match. In the first, Scott is sitting back with both hands in his lap. In the next, he's suddenly leaning forward and has one hand on his cheek.

Factual error: Season 2, "So Coldly Sweet": An American spy in the process of bugging a hotel room is stabbed by a Russian spy. But immediately afterward, as well as later when he's found, there is no blood visible on his white shirt or on the carpeting.