NBC is getting into the late-night poker show business with its new Monday-through-Saturday series “Poker After Dark,” a Las Vegas-based series that features six poker professionals vying for a winner-take-all $120,000 first place prize.

Hosted by former World Poker Tour host Shana Hiatt, “Dark” will debut Jan. 2 at 2:05 a.m. (ET). Each night will feature a look at one table as it develops over the week, culminating with a winner on Friday night. Saturday night’s show—the “director’s cut”—will recap the week’s events with Ms. Hiatt, and that week’s winner will comment and give insight into his winning strategy. The Saturday show will air at 1 a.m., following “Saturday Night Live.”

NBC Universal Television West Coast President Marc Graboff made the announcement Wednesday.

“There’s a vibrant late-night audience looking for original programming,” Mr. Graboff said in a statement. “We felt this inside look at the professional poker scene is perfect for late-night television and those viewers seeking a unique and original broadcast.”

Ms. Hiatt hosted the World Poker Tour from 2003 to 2005. A former model, she has also appeared in the feature films “Must Love Dogs” and “Grandma’s Boy.”

“Poker After Dark” is produced in conjunction with Poker Productions. Mori Eskandani and Eric Drache are producing.