Those familiar with the game know that new television series, especially those for traditional broadcast networks, are generally given an initial 13-episode order. Based on the strength of those initial episodes (primarily in the ratings, if we want to be honest), the network can then pick up an option for the “back nine”. While “Grimm” received that honor earlier in the season, it’s pretty clear that the producers didn’t do much to adjust the original plans for the initial order.
One of the more well-known elements of Arthurian legend is the forbidden romance between Sir Lancelot and Guinevere. Given the generally family-friendly nature of "Merlin", this story isn't something I ever expected to appear in the show. But "Merlin" continues to surprise me, from time to time, with its unexpected forays into more mature subject matter. Still, I was a little apprehensive about how well they could handle this storyline and make it work.