The Shield has been greenlit for a sixth season. No one at FX will confirm, but very reliable sources say series creator Shawn Ryan has decided there's enough creative juice left to carry on for one more season. The show is currently in production on Season 5's final 10 episodes, slated to debut in early '07. In other FX news, I'm told the cable net has made a 13-episode commitment to Courteney Cox's tabloid-set comedy Dirt. We're happy about this. Why are we happy about this? Because I read the pilot script, and it's really funny. We're also happy about this because Courteney Cox was the most underrated member of the Friends cast, and we want to see her succeed. At least I do.