Have you ever wondered what the world's greatest invention was? If you guessed electricity, smartphones or indoor plumbing, you'd be wrong, according to a TV spot for Ball Park hot dogs. A patriotic host asks viewers what the greatest invention was. It's not the cotton gin or electricity, much to the disappointment of Eli Whitney and Benjamin Franklin, but Ball Park's new line of premium hot dogs. Park's Finest are all beef, nitrate-free and seasoned with hickory smoke. "So American You Can Taste It," closes the ad, seen here and running on Food Network, HGTV, TBS, TLC and ESPN. Y&R New York created the campaign.