I watched my first full sporting event in 3D on Monday - the BCS Championship Game - Auburn vs Oregon.  Here's some thoughts about my experience:

When I first turned on the TV, it was on ESPN, not ESPN 3D, so I heard Brent Musburger and Kirk Herbstreit's introductory comments.  When I switched over to ESPN 3D, the first thing that struck me by surprise was that there were different announcers.  After a second, I realized that of course there should be different announcers.  After all, this IS a different broadcast, even though it is the same game.  (What a treat that I didn't once have to hear Brent call Kirk "Herbie" one single time.  That was worth it alone :-)

But on to more important things....

The sporting event itself was cool to watch.  Many of the angles and shots made you feel as if you were in the crowd at the game.  They included the shot behind the band which they used several times, the Oregon Duck mascot pointing at the camera, the Oregon cheerleaders on the sidelines, as well as several angles of the game itself.

The broadcast was not without problems however.  Oftentimes the picture was blurry and was slightly painful to watch.  I had noticed objects in the background that didn't render correctly in 3D previously, but in this case, it was sometimes most of the screen that was slightly out of focus.

Another observation was the lack of many commercials.  Oftentime after a score, they would just stay on the broadcast and review the previous drive or give more background on the players.  It was very pleasant not to have to watch many commercials.  This had to be due to the fact that since this is a brand new network, they don't have many advertisers yet, so I'm sure that this will change.

Altough I believe that this technology still has to work out the kinks, overall, I was pleased with the broadcast.  I only wish that more major events were on ESPN or the other networks would adopt 3D so that we can watch more 3D content!