The latest Arby's commercial is a 13 hour, single shot of brisket smoking. This is to promote the roast beef restaurant chain's Smokehouse Sandwich. The item contains real smoked brisket that has been cooked over a fire for at least 13 hours. This excessively long advertisement proves that.
Rather than following the trend of shorter and shorter commercials, Arby's has no qualms with making you sit through 13 hours of smoked meat, especially because it made them Guinness World Record holders.
What was likely a pretty inexpensive commercial to make, the ad also has an interactive component. When you visit their 13 hour brisket website, it lets you know that if you click on the annotations throughout the online broadcast you could win a prize. Afterwards, the Arby's commercial will be available to watch on YouTube.