With “Smash” the latest NBC primetime flotsam and jetsam, the search continues at the network for The Next Big Thing to help jack up its ratings. NBC’s reality TV guru Paul Telegdy thinks it’s “The Million Second Quiz” — a 12-day live competition combining the best/worst of David Blaine, “Big Brother,” and “Jeopardy!”

Competitors on “The Million Second Quiz” (a million seconds equaling about 12 days) will test their trivia knowledge for twelve consecutive days and nights — while living in a gigantic glass hourglass in the heart of Manhattan. In the fall. Some time.

NBC boasts it’s the first “fully convergent television experience, where viewers will be able to play along at home in real time and sync to the live primetime broadcast.”

For 24-hours a day, contestants from all across the country will be able to engage in the game and win the chance to appear on the show in primetime.

Four players who have remained in the game longest will live in the hourglass and will have the opportunity to play along with the game for up to two weeks as other contestants try to unseat them during the primetime show.

When the one million seconds draws to a close, the finalists will battle it out in the hourglass, and the ultimate winner could claim a cash prize of $10 million.

“It is a game, a social experiment, and a live interactive event all wrapped into a uniquely sticky entertainment experience,” Telegdy said in Wednesday’s announcement.

The show comes from Stephen Lambert, who created reality TV formats including “Wife Swap,” “Undercover Boss,” “Faking It,” and “Secret Millionaire.”