Here's how this works:
1. Grab their app
2. When you are watching live TV and a Burger King commercial comes up on the screen. Scan their QR code with your phone and once it's scanned a Burger King Whopper will be added to the app.
3. Next time you visit Burger King to redeem your free Whooper.
Burger King is giving away 10,000 Free Whoopers. If you watch a lot of TV, the chance of getting one is really pretty good. But you need to be quick so have your phone ready.
The video below show an example of the commercial.
And no, scanning the QR code in the YouTube video won't work.