Owner of a Lonely Heart - S2-E11
Visible crew/equipment: When Burke hands Cristina the cup of coffee as she leaves for the hospital, blue screens can be seen in his eyeglasses.
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)