The Evolution Championship Series (Evo) is held in Las Vegas every year and competitors come from all over the world to compete for money and bragging rights. I recorded this video with footage of Super Street Fighter 4 to give you a basic primer of what to expect from this weekend's festivities.
Thanks to Matt for helping me with the information. We aren't the most knowledgeable people about the FGC (fighting game community), but we love it and I think you will too. Here's a link to the schedule and all 3 streams are embedded below.