It does exist! The 13 hour brisket video.
Arby's made a video of a brisket smoking for 13 hours, and sold it on DVD.
I thought it was a joke ad campaign, until I saw they put it up on youtube.
Best Commercial Ever! Well, ok, longest commercial ever, according to Guinness.
Luckily there is a 5 minute timelapse for the rest of us.
The chopping, slicing, and sandwiching at the end is mouthwatering...
Excuse me while I kickstart my smoker. I suddenly need a sammich.