Watching NBC Olympic coverage, Johnny and Tara used to be a lot of fun to watch.
Not this year.
Also, I think the replays are fewer this year. It used to be one would see several jumps, etc., per performance. So either they are spending more time in ads, or there is less time between performances.
It has always amazes me how judges - and sports commentators - are able to catch incredibly small errors. A few milliseconds on one very slightly missed edge, and they see it. Granted, Johnny and Tara say the technical specialist miffed several calls, but still - how can anyone see such minor issues at all? Sure, at this level, they probably know the routine, so can specifically look for the most likely mistakes in real time, and go back and look again - but many of the mistakes are so small, and so short, it seems impossible they would notice them.