AMNA NAWAZ: And there's a sad passing of note tonight. A member of the larger PBS family, satirist Mark Russell, who poked fun at America's political elite for more than half-a-century, died today. With his fingers at the piano keys, he blended biting parity with song. GEOFF BENNETT: He was best known for his PBS comedy specials that aired from 1975 to 2004. He went on to serve as host of the popular NBC reality program "Real People" in the late '70s and early '80s. Russell died at his home in Washington, D.C., of complications from prostate cancer. That's what his wife told The Washington Post. Here is Mark Russell at his finest. (SINGING) (APPLAUSE) AMNA NAWAZ: Mark Russell was 90 years old. And our thoughts are with his friends and family.