Around 12 minutes in, you can see "Diagnosys" written on a blackboard, instead of "Diagnosis".
There was not one main cast member who appeared in all 182 episodes. The closest are Donald Faison (Christopher "Chris" Turk) and John C. McGinley (Percival "Percy" Cox); they appeared in 179/182 episodes of the entire series run. In second place is Zach Braff (John "J.D." Dorian), who appeared in 176/182 episodes; followed by Ken Jenkins (Robert "Bob" Kelso) (175/182) and Sarah Chalke (Elliot Reid) (171/182).
Original International Air Dates: United Kingdom: December 27, 2010 on E4
At the end of the episode Turk mentions that his "daughters" love the aquarium, so we can guess that when Carla got pregnant in season 8, she had another girl.
S 9 : Ep 13
Aired 3/17/10 (21:45)
S 9 : Ep 12
Aired 3/10/10 (21:46)
S 9 : Ep 11
Aired 1/26/10 (21:45)
S 9 : Ep 10
Aired 1/19/10 (21:45)
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