Advertising is mostly utilitarian or, frankly, crap but some ads pop into the national consciousness. The story behind the ads that do click is the remit of Tagline. How do they come together? And the very first episode is about a beer, Dos Equis and The Most Interesting Man in the World.
How an SNL sketch and a song about George Washington proved the inspiration for a pair of writers bored with a client who seemed impossible is a great back story. Just the fact that this series of spots has two taglines is great.
You can grab a Dos Equis but I would say that you should go to a bottle shop and look for the most interesting label in the cooler case. Then look at why you find that interesting. Is it the color? The font? The information?