Wasn't expecting this news already, between this and the airdate for Doctor Who looks like Comic Con is getting all the big UK news.
Broadcast
Merlin, BBC1’s Saturday night fantasy drama, has been commissioned for a fifth series – before the fourth has even aired.
The new commission was announced as cast members Anthony Head, Braley James, Katie McGrath and Colin Morgan met fans at the Comic Con event in San Diego yesterday (Sunday).
The fourth series of the medieval drama is currently being filmed by Shine TV in France and Wales, for broadcast this autumn on BBC1.
The new 13 x 45-minute series will begin production in March 2012.