Pictured in this photo: Jensen Ackles as Dean and Richard Speight Jr. as Trickster.
This is a scene from "Changing Channels." During this episode, Sam and Dean are trapped inside various TV shows.
Sam and Dean as doctors? We don't want them operating on us!

Supernatural Season 5 Episode 8 Quotes

Sam: It was you on the police scanner, right? This is a trick.
Trickster: Hello? Trickster.

Cathy Randolph: I could have sworn I saw... the Incredible Hulk.
Sam: The Incredible Hulk?
Cathy Randolph: I told you, it's crazy.
Dean: Bana or Norton?
Cathy Randolph: Oh, no, those movies were terrible. The TV Hulk.
Dean: Lou Ferrigno?
Cathy Randolph: Yes.