i think KSEE 24 in Fresno is broadcasting hd in the studio, and 16:9 out in the field. im not 100% sure, but they did update their news set and bought new cameras.
I watched channel 47 and they were talking about the remodeling of their news set this week. They also mention cool surprises this comming week. I have a feeling their remodeling their news set for HD.