NFL Films founder Ed Sabol (right) is seen with his son Steve Sabol (left) at an NFL game in an undated image. (National Football League)

Washington Redskins head coach George Allen, left, is filmed by NFL Films cameraman Steve Sabol, center, during a 1971 game at RFK Stadium in Washington DC. (National Football League)

NFL Films President Steve Sabol, left, speaks with an NFL Films crew in this undated image. (National Football League)

Philadelphia Eagles head coach Buddy Ryan, right, speaks with NFL Films President Steve Sabol, left, before a 38 to 28 San Francisco 49ers win over the Eagles at Veterans Stadium in Philadelphia, Pennsylvania. (AP Photo/ Paul Spinelli)

Steve Sabol plays football with his father, Ed Sabol. (NFL Films)

NFL Films President Steve Sabol poses at his desk with an old 16mm movie camera while the company's new live Internet program airs on the computer screen behind him at their headquarters in Mount Laurel, N.J. Tuesday, Sept. 26, 2000. Sabol, whose father, Ed, started the company in 1962, began as a cameraman using a camera similar to the one on his desk. Sabol said the company is working on plans to eventually put its entire film archive on the Web. (AP Photo/Daniel Hulshizer)

(L-R) NFL filmmakers Steve Sabol and Ed Sabol attend the 25th Annual Sports Emmy Awards April 19, 2004 in New York City. (NFL Films)

Cincinnati Bengals head coach Marvin Lewis, center, enjoys a laugh with NFL Film president Steve Sabol, left, and HBO Sports president Ross Greenburg during a news conference, Thursday, May 14, 2009, at the NFL football team's stadium in Cincinnati. HBO Sports, NFL Films and the Bengals announced the Bengals will be the subject of HBO's Hard Knocks reality series featuring the Bengals at training camp this season. (AP Photo/Al Behrman)

Steve Sabol speaks following the announcement of his father Ed Sabol to the Hall of Fame Class of 2011 at the Super Bowl XLV media center in the Dallas Sheraton in Dallas, Texas on February 4, 2011. (Gary A. Vasquez/NFL)

(L-R) NFL Network host Rich Eisen and NFL Films president Steve Sabol (representing his father Ed Sabol) have a conversation while wearing red socks at the Pro Football Hall of Fame press conference to announce the 2011 Class of Enshrinees during the week of Super Bowl XLV. Ed Sabol, who wears red socks while watching the Super Bowl every year, was newly elected to the Hall of Fame Class of 2011 at the event held on Saturday, February 5, 2011, in Dallas, Texas. (AP Photo/Paul Spinelli)

Hall of Fame enshrinee Ed Sabol with his son Steve during the 2011 Football Hall of Fame ceremony in Canton, Ohio on August 6, 2011 (Ben Liebenberg/NFL)

NFL Films founder Ed Sabol (bottom right) with son Steve Sabol (left) backstage before the 2011 Football Hall of Fame ceremony in Canton, Ohio on August 6, 2011 (Ben Liebenberg/NFL)

Steve Sabol answers questions during an interview in Dallas. (AP Photo/Tony Gutierrez, File)

NFL Films President Steve Sabol poses with broadcaster Harry Kalas on the set of NFL Pro! Magazine television show in New Jersey, 1980s. (National Football League)