KANSAS CITY, MO - DECEMBER 4: Tight end Jason Dunn #89 of the Kansas City Chiefs carries the ball against the Denver Broncos at Arrowhead Stadium on December 4, 2005 in Kansas City, Missouri. The Chiefs defeated the Broncos 31-27. (Photo by Brian Bahr/Getty Images)
HBO’s Hard Knocks is considered one of the most popular sports-related television shows. The series featured the Baltimore Ravens in 2001 and the Dallas Cowboys in 2002, closely following teams during training camp and in their preseason games.
After production stopped in 2002, the revival of the franchise came in 2007 and the Kansas City Chiefs were selected as the first team for the show’s return.