Watch Worlds Funniest Fails Online for free. An irreverent one-hour series, World’s Funniest Fails is inspired by the hit YouTube channel, FailArmy, which showcases the best “epic fail” viral videos in the most entertaining ways possible. Each week a panel of celebrities and comedians will analyze the videos which have exploded across the internet, with the goal of awarding one with the ultimate “Fail of the Week.”