Complex sentence: In September, they played two dates at New York City's Roseland Ballroom, and made TV appearances, including a one-hour special episode of "The Colbert Report" and the season première of the American sketch comedy show "Saturday Night Live".
Split into simpler sentences: In September, they played two dates at New York City's Roseland Ballroom. They also made TV appearances, including a one-hour special episode of "The Colbert Report" and performing on the season première of the American sketch comedy show "Saturday Night Live".