User blog comment:FlamingShadow213/Who do you think will find out in season 5?/@comment-3012002-20121003231857

I was watching the Merlin promo on the Channel 10 website last night and I noticed something interesting. There's a bit where Arthur looks to Merlin and says 'Merlin,' before it cuts to Merlin and his eyes glowing so I'm wondering if its one scene or if its two completely scenes and just put together. If it's one scene then I'm beginning to think that whenever this scene takes place then Arthur probably knows?