browser does not support iframes. Ever Wonder? Why do Referees Wear Stripes? September 09, 2016 In early American football, referees wore white outfits with black bow ties, but in 1921 the first striped official outfit made its debut and it didn't receive a warm welcome. Playlist Ever Wonder: How Does the NFL SkyCam Work? December 14, 2020 Introduced in 1984, the SkyCam has become a mainstay in NFL football games. But have you ever wondered how they operate it? Jeff Burton experiences Hawkeye Inspection August 11, 2019 Jeff Burton takes race fans through NASCAR's new Optical Scanning System known as 'Hawkeye Inspection' which uses high… Ever Wonder: Why do Athletes Wear Eye Black? December 28, 2016 In this edition of Ever Wonder, We investigate why athletes wear eye black and where the tradition began in sports. Sports in this article Football Tags in this article Ever Wonder NBC Sports