Merlin and Gwen try to transform a hapless farmer (Alex Price) into a dashing knight in an effort to allow Arthur to joust without his identity being known in Season 2's second episode. A nice example of the use of soft facial light, and harder window light that makes up a large amount of the Merlin look. Also I think this scene shows the gentle humour of the show used at times to provide relief from the other darker, more dangerous storylines.