Personally i've been enjoying the coverage. 4 channels, two seems to be playing long term events (soccer, basketball) others are mid length (tennis, volleyball) bunch of short events on the other channel (fencing, archery, handball) Very little talking heads, its just raw coverage. And not everything has been US only. When they do have talking heads wish they would show in a crawl at the bottom what's happening on the other channels or what's coming up. Guess that's what the website is for: http://www.nbcolympics.com/online-listings/day=july-28/index.html
Fencing has been awesome, really want to see some table tennis and badminton.