Gene Siskel (January 26, 1946 – February 20, 1999) and Roger Ebert (June 18, 1942 – April 4, 2013), collectively known as Siskel & Ebert, were American film critics known for their partnership on television lasting from 1975 to Siskel's death in 1999. Known for their sharp and biting wit, intense professional rivalry, heated arguments, and their binary "Thumbs Up or Thumbs Down" summations, the duo became a sensation in American popular culture. Siskel and Ebert remained partners and in the public eye right up until Siskel's death from a brain tumor in 1999.