Heads up, people: In one hour, the ticket-giveaway phones open for this year’s national Free Night of Theater.

(OK, they’re not phones — it’s an online thing — but you get the point.)

Tickets will probably be gone in half an hour, so look at the list now, and make your picks.  Then, at the crack of noon, you’ll wanna be back at the Free Night site, virtually trampling the virtual hordes on your way to the virtual sale tables.

Happy hunting.