First, select a show date and time. You'll be taken to a page that details any special instructions about the show, and lists the address where the taping is taking place. Pay close attention to the arrival time suggested on the form - if you get there late, you may be denied access to the taping.
Fill out the form with your information, and click on the "submit" button. You'll get an e-mail confirmation, and your tickets will be held for you at the taping location.
The address where Power of 10 films is:
Kaufman Astoria Studios
34-12 36th Street,
Astoria, NY 11106