World Series of Poker
The World Series of Poker (WSOP) is a series of poker tournaments held annually in Las Vegas and, since 2005, sponsored by Caesars Entertainment Corporation (known as Harrah's Entertainment until 2010). It dates its origins to 1970, when Benny Binion invited seven of the best-known poker players to the Horseshoe Casino for a single tournament, with a set start and stop time, and a winner determined by a secret ballot of the seven players.
World Poker Tour
A series of spin-off tournaments, titled the Professional Poker Tour, began filming in 2004. Broadcast of the series was delayed, which was partly due to a dispute with the Travel Channel over rights. In the fall of 2005, WPTE announced that "a cable channel" (believed to be ESPN) had withdrawn from bidding for the PPT series, and that WPTE was negotiating with the Travel Channel to air the series. On January 30, 2006, WPTE and the Travel Channel announced that they had dismissed all open lawsuits. The series began regular broadcast July 5, 2006, but was suspended after one season as WPTE couldn't find a television home for a second season.