BattleBots was an American company that hosted robot competitions. BattleBots was also the name of the television show created from the competition footage hosted by comedian Bil Dwyer. BattleBots Inc. was headquartered in Vallejo, California and held most of its competitions in the San Francisco area. In a BattleBots event the competitors are remote-controlled armed and armored machines designed to fight in an arena combat elimination tournament. If both combat robots are still operational at the end of the match, the winner is determined by a point system based on damage, aggression, and strategy. The television show BattleBots aired on the American cable network Comedy Central for five seasons, covering five BattleBots tournaments. The first season aired starting in August 2000, and the fifth season aired starting in August 2002. Hosts of BattleBots were Dwyer and Sean Salisbury (with Tim Green replacing Salisbury after the second season) and correspondents included former Baywatch actresses Donna D'Errico, Carmen Electra, and Traci Bingham, former Playboy Playmate Heidi Mark, and identical twins Randy and Jason Sklar. Bill Nye was the show's "technical expert". The show's match announcer was longtime boxing ring announcer Mark Beiro. After five seasons, Comedy Central terminated their contract with BattleBots Inc. in late 2002. As of May 2011, there are no future plans for Battlebots.