When the eventual AFC champion 2013 Denver Broncos gave 26½ or 28 points to the hapless 0-5 Jacksonville Jaguars in week 6, the line became the widest point spread of the 21st century. (The Jags kept things reasonably close until the fourth quarter and covered the ’spread with a 35-19 SU loss.)
However, the biggest point spread in NFL history remains the one given in 1976, when the expansion Tampa Bay Buccaneers came to play the eventual Super Bowl champion Steelers in Pittsburgh. The line was Pittsburgh -28; the final score was Steelers 42, Buccaneers 0…