Though they came to fame as magicians, Penn & Teller have turned their comedic talents to TV with PENN & TELLER: BULLSHIT! The duo debunks various popularly held ideas using Penn's acerbic wit (Teller is famously silent) and interviews with experts. With humor, intelligence, and a refreshing lack of tact, the fifth season covers such touchy topics as obesity, immigration, and Wal-Mart. Since Showtime is its broadcast home, Penn & Teller are free to curse and cover controversial topics with abandon in this Emmy-nominated series.