HOUSTON -

Maybe you've heard the saying "Just give me the time. Don't tell me how to make a clock." Well, fast-food chain Arby's is showing you how it makes its new brisket sandwich. And you can watch every single minute of the 13-hour process.

Arby's created the world's longest television commercial and grabbed the Guinness World record title this weekend when the ad aired on a station in Duluth, Minnesota. The commercial showed a single shot of brisket being placed inside a smoker, and then cooking. When it was done, the brisket was used to make a sandwich. Arby's will start live streaming the ad online here at 9 a.m. Eastern time Wednesday.

The company will give out $20,000 in cash and prizes for people who log in to watch.