The poker shows regularly running new episodes are:
US Poker Championship, variable times (schedule), ESPN and ESPN2.
Pro-Am Poker Equalizer, variable times (schedule), ESPN.
Poker Dome Challenge, 11 PM Sunday, Fox Sports. They rerun new episodes at 3 PM Wednesdays.
High Stakes Poker, 9 PM Monday, GSN. Reruns of new episodes air at 2 AM Tuesday and 9 PM Thursday. Previous seasons are rerun at 8 PM Monday (season two) and 10 PM Monday (season one then two in order).
Poker After Dark, 2:05 AM Tuesday through Saturday (late night Monday through Friday) and 1 AM Sunday (late night Saturday), NBC. Some NBC affiliates aren't airing it but you can watch it on the web.
Rob and Amber: Against the Odds, 8:00 and 8:30 PM Thursday, Fox Reality. The rerun schedule is here. It's also available on iTunes.
The poker shows below air on local channels. Check an online programming guide or their web sites for the time/channel in your area.
Heartland Poker Tour
Ultimate Poker Challenge