The bi-annual offer allows theatregoers to purchase $20 tickets for select Off-Broadway shows 20 minutes before show time. 20at20 will run Jan. 18-Feb. 6, 2012.

The Off-Broadway Alliance has also announced that theatregoers who take advantage of the program seven times will receive a voucher for a free dinner at an area restaurant.

The participating shows include Black Angels Over Tuskegee; Channeling Kevin Spacey; CQ/CX; Dancing at Lughnasa; DANNY and SYLVIA: The Danny Kaye Musical; Freckleface Strawberry, The Musical; Freud's Last Session; Fuerza Bruta; How the World Began; Ionescopade; Love, Loss, and What I Wore; Million Dollar Quartet; Miss Abigail's Guide to Dating, Mating & Marriage; My Sinatra; Naked Boys Singing!; NEWSical; Perfect Crime; Pinkalicious, The Musical; Psycho Therapy; Rent; Russian Transport; Rutherford and Son; Sam Eaton's The Quantum Eye - Mentalism and Magic Show; Silence! The Musical; Sistas: The Musical; The Accidental Pervert; The Amazing Max and The Box of Interesting Things; The Awesome 80's Prom; The Berenstain Bears LIVE!; The Bully; The Devil's Music: The Life and Blues of Bessie Smith; The Fantasticks; The Gazillion Bubble Show; The Lion, the Witch and the Wardrobe; and Traces.

Tickets must be purchased at the box office of the participating productions. Some box offices are cash only.

Visit www.20at20.com for complete details.