Merlin Series 5, Episode 9, "With All My Heart" - aka the one where Merlin disguises himself as the Dolma.
I have amused myself far too much with that joke, by the way. Ah, it is the humour, that thing Merlin used to balance with the drama rather well, but recently not so much. "Yeah, big dramatic will Gwen survive storyline, let's squeeze in a quick comedy trombone and a bloke in a dress. Wah-wah-wah-waaaaaah."
I mean, was there even anything else about the episode worth mentioning? I guess there was the scene with Merlin and the Dochraid, in which Colin Morgan and Maureen Carr engaged in a gripping overacting contest.
Sir Percival had lines and a shirt this week. The show really has forgotten what the point of Tom Hopper is.
They do like that "sosseror holds hand out in front of them, enemy falls over" trick. I guess it saves on the CGI budget so they can make an anorexic dragon.
SOSSERY! count Two! Two in quick succession, what joy! And a "sosseror!" for dessert!
GAYWATCH! Merlin's lispy drag act is brought to you courtesy of every 1970s sitcom.