Smoothing Filter Help Needed

[[MA]Debito]

I'm trying to get these noisy parts of this video (below) to become more of a smooth color without blurring the video and losing alot of detail. Any ideas?

Here's the picture:

http://members.cox.net/debito/wrsmoothing.PNG

I've tried several filters but they only smooth out enough to make noticeable blotches of blurred mess.