The following table shows the lowest main-floor ticket price available for "Whose Live Anyway?" a live improv-comedy show featuring Ryan Stiles at the Center for Performing Arts at Governors State University on April 30, depending on date of purchase.

September 13: $49
September 14: $49
September 15: $15
September 16: $49
September 17: $49

Notice anything unusual?

In honor of its15th anniversary, the Center will offer 15 main-floor tickets to each of its shows for just $15 each at www.centertickets.net on September 15 beginning at 10:15 a.m. If you're one of the lucky ones to get the (up to 69 percent) discount, you can only buy two tickets. Hey, demand is high for shows like Jim Brickman (October 3), Jeff Corwin (October 17), Hubbard Street Dance Chicago (January 23), Los Lobos (March 20), The Glenn Miller Orchestra (May 15) and more. See the full lineup for season on the website.