Maybe it's just happening when I'm watching, but based on my (unscientific observations) it seems that NBC has made an attempt to devote a little more time to coverage of the 2011 MLS Cup, which takes place at 8:00 pm central time on Sunday. In light of the news that NBC Universal has obtained a broadcast rights package for MLS matches starting with the 2012 season, it isn't surprising that NBC stations and programs have given airtime to the 2011 MLS Cup. Considering that this 2011 MLS Cup features the high profile LA Galaxy taking on a team that won back-to-back MLS Cups in 2006 and 2007, the Houston Dynamo, it's a good match for NBC to take advantage of in an effort to raise the profile of MLS on its programming.
The first clip is from Morning Joe on MSNBC, the second clip is from Early Today, and the third clip is from Channel 2 KPRC in Houston, Texas. Granted the last clip probably would have been produced even if NBC had not obtained MLS broadcast rights, since Houston Dynamo are involved in the match.
I tried to find video from the NBC affiliate in Los Angeles, but this is all I could find, a photo gallery.