I agree, looked very good actually and not too many glitches for the first go around. However, I would say this is because they have been practicing with most of the new stuff for a while before flipping on the HD part of it. If you will notice, they're using the same graphics, had the set for a while, etc.
The live field shots and pre recorded packages looked much better and had a sharper picture than the studio cameras I thought. This could be easily corrected of course and also, I think they could get more creative with camera angles now and show off the nice studio and not just tight shots all of the time. This would help with the clarity of the studio cameras as well as the more lights from the screens and walls you show off, the better the camera likes it and. Also, you may not have took much notice, but the weather maps all looked stretched to fit the 16:9 ratio. The logo at the top was the big thing that gave it away. Again, not a big deal as it could be a small upgrade later down the road to get a 16:9 doppler system.
Overall though good stuff last night! Congrats WVLT-TV!