Visible crew/equipment: When Alan views the kitchen, a boom mic shadow can be seen in the top left of the screen. (00:13:05)
Visible crew/equipment: After Tara is found in the Janitor's closet and brought back to her room as Willow & Buffy come in, there is a mirror to the left of the door. It has a scarf draped over it to prevent it from reflecting things it shouldn't, but the bottom right corner is still exposed and in it you can see glimpses of the crew moving around behind the camera.
Visible crew/equipment: When Daniel is talking to Teal'c in the jail cell, you can see a camera light reflected in Daniel's glasses.
Visible crew/equipment: When T.J. is playing basketball in the garage, before the helicopter scene, you can see the boom mic fly across the top of the screen for about 2 seconds.
Cartman Gets an Anal Probe - S1-E2
Visible crew/equipment: When Chef is singing: "I'm gonna make love to you, woman!" A crew member's hand can be seen moving the character's head. This was later fixed in the DVD version, but it was not fixed in the original version.
The Made-to-Measure Murders - S13-E2
Visible crew/equipment: A crew member's shadow is seen moving behind an open door that a character is walking by. (00:15:45)
Visible crew/equipment: When Elliot first walks into Maya's office to find her in there with a crying Nina, a boom mic drops into view. (00:12:51)
Visible crew/equipment: After the cannibal woman spits on the guard as he walks through the prison transport ship, he comes to a long haired guy. But as he comes onto screen you can see the end of the set piece for the ship with the walls of the shooting studio visible. Then when the camera cuts to another angle it shows the guard still has a lot of ship to walk through. (00:09:25)