Visible crew/equipment: At the very end of the episode, right after he tells Jesse how he used the red phosphorus to kill the gunmen, Walt leans down to vomit. You can see his microphone transmitter under his shirt. (00:54:20)
Triumvirate of Terror! - S3-E8
Continuity mistake: When Joker zaps Wonder Woman and her mother, they are both standing in front of their thrones and fall forwards. But when Wonder Woman stands back up, her mother, still unconscious, is suddenly off to the side and behind the thrones. (00:11:35)
Other mistake: Carrie the assistant brings Lisbon and Jane to Stutzer's office. She swipes her card to open the door. However, she does this upside down, swiping the bar-code instead of the black magnetic strip, on which she is holding. (00:09:30)
Continuity mistake: When Mary offers Walter the fast food bag of chicken soup, her hand disappears and reappears on the top of the bag. (00:34:40)
Continuity mistake: After the failed attempt to stop Mr. Dilbert's bleeding, the ambulance attendant collects and takes away all the bloody rags they used for hemostasis. Still, the very next cut shows a whole pile of rags on Mr. Dilbert's body. To make the mistake even more evident, both his shirt and these rags are all clean with no blood on them. (00:42:35)
Continuity mistake: 4.03 - The 15 Minutes Job. Parker gives the target her number on the napkin, tells the guy to call her and takes a drink. The way she holds the glass changes immediately.
Visible crew/equipment: When Jimmy Smits and Dave Navarro are talking to the shopkeeper, a microphone wire can be plainly seen under Navarro's wife-beater. (00:14:25)