After Gabby Douglas blessed the United States with Gold in the Olympics, Bob Costas praised the fact that she was the first African American to do so in Gymnastics. He said that this would encourage others to consider the sport.
After he said all of that, however, the network aired a commercial featuring a monkey doing gymnastics. The commercial was for "Animal Practice – an upcoming NBC sitcom". In poor taste, definitely. The network has apologized.
The commercial may have been preauthorized to air for a long time ago before it was known who would win. Folks would have cried foul a lot louder had this been FOX.