wpt article

The New York Post has an article on the World Poker Tour. It's brief, but it mentions some good specifics on viewership:

Just how popular is the show? Well, the first-season reruns are actually cashing in more viewers than they did the first time around - over 900,000 viewers each night.

The "championship" game from the first season, which aired last June, drew over 1.1 million viewers - huge numbers for a niche cable network like The Travel Channel.