Other mistake: When Derek has finished showing Callie and Arizona the picture of Cristina getting her nomination, he leaves to take the kids into what we are supposed to believe is daycare...however the sign on the door reveals it is a dispensary. (00:02:30)
Visible crew/equipment: After Meredith discovers Derek visiting her mother at the nursing home, when it cuts to Miranda in the OR the T-mark can be seen on the floor at Cristina's feet. (00:26:40)
Owner of a Lonely Heart - S2-E11
Visible crew/equipment: In the NICU, when George starts boasting that he has the best quint, in the overhead wideshot we can see the T-mark (greenish yellow) on the floor near Kate, moments before Karev walks in and stands there. It's visible again just as Karev walks away. (00:01:05)
I Always Feel Like Somebody's Watchin' Me - S6-E3
Continuity mistake: When Alex is giving Izzy her medication, he is holding a water bottle and an unpeeled banana In his right hand. Then the banana magically disappears and he is holding only the water bottle. Immediately, the banana reappears and it is now peeled. This all takes place in three quick shot which are from different takes.
17 Seconds - S2-E26
Visible crew/equipment: After Burke and Alex board the helicopter to get the heart transplant, in the shot of Cristina backing away from it, you can see a red-capped crewmember and the camera reflected in the chopper's window. (00:06:25)
Continuity mistake: When Addison gives Derek the juju cocoa, he raises it to his lips three times in different shots, then is instantly holding it down by his waist in the next. (00:04:00)
Continuity mistake: When Izzie is looking at the patient board, there are some lines on it which have been wiped out. But in the next scene we actually see Meredith walk to the board and wipe these exact same lines off (even though they were previously rubbed out...) (00:34:05)
Band Aid Covers the Bullet Hole - S2-E21
Continuity mistake: When Callie places the hockey player's hand X-Ray on the chart, in the first shot it is on the left of the board. In the next it is dead centre and then back to being on the left again. (00:09:35)
(As We Know It) (Part II) - S2-E18
Continuity mistake: After Alex and Izzie have had sex in the closet, just before Izzie leaves in the first shot her hair is hanging in front of her shoulders. In the next shot as she walks out, it is all pulled back behind them. (00:13:35)
Continuity mistake: When Derek gives Meredith a white bag to hyperventilate into when she is crying in the closet, the large orange sticker on the side of the bag disappears and then reappears again. (00:35:30)
Continuity mistake: At the beginning when Derek is going to cook the trout and Addison is angry at him, the fridge door is shut. But in the next shot it is open a little bit and Derek closes it. (00:02:20)
Grandma Got Run Over By A Reindeer - S2-E12
Visible crew/equipment: When Burke and Cristina are walking along and Burke asks her if there is anything he should know about her religious holidays, you can see crewmembers, a boom and a stage light reflected in the glass running alongside. (00:05:30)
Grandma Got Run Over By A Reindeer - S2-E12
Continuity mistake: Derek is talking to Addison while he takes his iPod, winds the earphones around it and puts it in his pocket. But then as he stands, the iPod is now clipped to his shirt and the earphones are hanging around his neck! (00:26:00)
Grandma Got Run Over By A Reindeer - S2-E12
Continuity mistake: At the beginning when Christina walks out and notices the small tree on the table, Burke lifts his red mug off of the counter to his mouth twice between two different shots. (00:01:30)
Thanks for the Memories - S2-E9
Continuity mistake: When Holden's son Colby comes out of his Dad's hospital room, the sliding door doesn't shut behind him and is slightly open. In the next shot it is suddenly fully shut. (00:26:55)
Thanks for the Memories - S2-E9
Continuity mistake: When Addison is talking to Derek on the boat, when she asks him about having his day off, her bag strap falls off, onto her arm. In the next shot it's up on her shoulder again. (00:01:35)
Thanks for the Memories - S2-E9
Continuity mistake: When Alex comes in to talk to Meredith who is sitting on the floor, Meredith has two files and there is another file sitting up on the table next to her. By the end of the talk Meredith now has all three files although she never reached up for the one on the table. (00:16:15 - 00:17:55)
Thanks for the Memories - S2-E9
Continuity mistake: When George's Dad runs his fingers down George's face and streaks lines of blood on his cheeks, in the following shots the appearance of the blood streaks changes. (00:25:00)
Thanks for the Memories - S2-E9
Continuity mistake: When Derek, Burke and Webber are talking in front of the board, the position of the bag strap on Derek's shoulder keeps changing. (00:03:10)
Thanks for the Memories - S2-E9
Continuity mistake: At the end when Derek is talking to Addison in the rain, a large wet strand of hair falls down onto his forehead. In the very next shot it is gone. (00:39:40)