Be Careful What You Witch For - S2-E22
Visible crew/equipment: While Leo is up in the attic with Piper, flying Phoebe, and teenage Prue, Leo explains what happened to Prue, and when Phoebe asks how it's even possible, we can see the stunt harness at the back of Phoebe's jeans as she rises in the air. (00:18:45)
Visible crew/equipment: After Phoebe tells the others that Emilio will be getting arraigned at night court in an hour, when it cuts to Leo and the sisters walking in the court hall, the shadow of the boom mic is moving at the top, left side of the screen. (00:33:45)
Visible crew/equipment: At the start of the final courtroom scene, when the first shot is on Cole with Morris behind him, the boom mic is visible over Cole at the top of the screen. (00:34:25)
Magic Hour - S3-E2
Visible crew/equipment: When Prue and Phoebe see Piper arrive home, a boom mic dips into the shot. (00:01:30)
Visible crew/equipment: After the Grimlocks enter the manor Leo calls for Piper then rushes out of the kitchen, and when it cuts to the shot of the dining room the edge of the crew's black mat is visible at the bottom of the screen. The black mat is again when the sisters are pulled into the time portal, though the only thing we should be seeing is the fringed area rug. (00:04:00)
Visible crew/equipment: After following the signs that lead to the demolition site, when Prue unlocks the chain on the door and enters the loft, the T-mark is visible on the floor at her feet. (00:03:45)
We All Scream for Ice Cream - S3-E10
Visible crew/equipment: When Phoebe gets an IM on the laptop Prue walks over to her, and just as Prue sits down at the table we can see the blue tape mark on the floor, where she had been standing. (00:05:50)
We All Scream for Ice Cream - S3-E10
Visible crew/equipment: When Prue and Phoebe are trying to pull the girl out of the ice-cream truck, in one brief shot, you can see the wires holding the girl up.
Blinded by the Whitelighter - S3-E11
Visible crew/equipment: After the opening credits, when it cuts to Piper and Leo in the dining room the green tape mark is visible under the table, and the red T-mark and long blue tape mark are also visible on the crew's black floor mat behind Leo. (00:04:45)
Visible crew/equipment: After Lukas kills the other demon so he can move forward with his plan to go after the witches, when it cuts to the manor's foyer as Prue and Phoebe walk in, the green T-mark is visible on the rug at the bottom of the screen. (00:08:15)
The Demon Who Came In from the Cold - S3-E19
Visible crew/equipment: After Prue removes the piece of Belthazor flesh from the freezer it cuts to Cole finding Phoebe's note in his pocket with a closeup of Cole, and at the start of the next shot the reflection of the boom operator holding up the boom pole and mic can be seen on the glass window, behind Pirelli/Vornac. (00:28:05)
All Hell Breaks Loose - S3-E22
Visible crew/equipment: During the scene in the kitchen, after Piper reads through all the faxed interview requests, in the wideshots facing Darryl the reflection of the moving boom mic is visible on the glass at the top, center of the screen. (00:21:15)
Visible crew/equipment: After Piper summons Grams and then Patty appears as well, when it cuts to Darryl and Cortez entering the manor, the blue and white T-marks taped to the crew's black mat are visible, at the bottom of the screen. (00:34:00)
Visible crew/equipment: When Sykes is about to kill Susan at the ADA'S office, Leo hits Sykes and orbs out with Susan, and in the next shot as Sykes sits up we can see the green tape mark on the floor, under his leg. (00:22:30)
Visible crew/equipment: When the Dark Priest finds the box containing the Lazarus Demon, just as the Seer says that she can always count on him to help, the shadow of the boom mic dips into view at the top of the screen. (00:09:05)
Visible crew/equipment: When Phoebe tells Piper that she's on a deadline and hangs up the phone, in the next shot as Piper says that she's going to Phoebe at the newspaper, the shadow of the boom pole/mic is visible on the wall behind Piper, at the top of the screen. (00:26:45)
Visible crew/equipment: Just after Paige orbs into Phoebe and Cole's hotel room, a boom mic can be seen at the top of the screen.
We're Off to See the Wizard - S4-E19
Visible crew/equipment: After Phoebe tells Cole she's pregnant she leaves in the elevator, and when it cuts to Piper, Paige, and Leo we can see the crew's grey mat on the floor under Piper and Paige, then in two following shots (from the same angle) the red T-mark is visible on that mat, at Paige's feet. (00:07:45)
Visible crew/equipment: During Cole's meeting with Dane and several other demons, just as Dane begins to talk about Gregory Conroy being a probation officer to juvenile offenders, the yellow T-mark is visible on the floor near the actor's feet. (00:06:00)
Womb Raider - S4-E21
Visible crew/equipment: While Piper, Phoebe, and Paige are in the magical cage, the Dark Priest, the demons, and the Seer are all killed/vanquished, then when Piper kicks open the cage the sisters walk out, and we can see the black mic transmitter attached to Phoebe's waist, at her back on the right. (00:38:40)
Answer: "Hush, Hush, Hush" Paula Cole.