The 1978 Dallas Cowboys season was their 19th in the NFL. For the third consecutive season, the Cowboys finished in first place in the NFC East. The Cowboys scored 384 points, which ranked first in the NFC, while the defense only gave up 208 points. The Cowboys became the first franchise to appear in five Super Bowls. Twice, the Cowboys appeared on Monday Night Football.
The defending Super Bowl champions were again led by quarterback Roger Staubach. Staubach finished the season as the top rated passer in the NFL (84.9) by throwing 231 out of 413 completions for 3,190 yards and 25 touchdowns, with 16 interceptions. He also rushed for 182 yards and another touchdown. Wide receivers Drew Pearson and Tony Hill provided the deep passing threats, combining for 90 receptions, 537 yards, and 7 touchdowns. Tight end Billy Joe Dupree contributed 34 receptions for 509 yards and 9 touchdowns. Running back Tony Dorsett had another fine season, recording a total of 1703 combined rushing and receiving yards, and scoring a total of 9 touchdowns. Fullback Robert Newhouse and halfback Preston Pearson also contributed from the offensive backfield, combining for 1,326 rushing and receiving yards, while Newhouse also scored 10 touchdowns. The Cowboys also had a superb offensive line, led by Herbert Scott and 12-time Pro Bowler Rayfield Wright
The Cowboys’ “Doomsday Defense” finished the season as the top ranked defense in the league against the run by only allowing 107.6 yards per game. Pro Bowl linemen Ed “Too Tall” Jones, Harvey Martin and Randy White anchored the line, while linebackers Bob Breunig, D. D. Lewis and Thomas “Hollywood” Henderson provided solid support. Their secondary, led by safeties Cliff Harris and Charlie Waters, along with cornerbacks Benny Barnes and Aaron Kyle, combined for 16 interceptions.
The Cowboys started the regular season slowly, winning only six of their first ten games. Both the offense and the defense played ineffectively, including giving up interceptions and fumbles. Dallas finished strong, winning their last six regular season games to post a 12�4 record.
In the aftermath of the season, NFL Films produced its annual highlight reel as it does for every NFL team. Notable of the highlight reel was the title, “America’s Team”. It would come to be a label that would define the Dallas Cowboys for the rest of their history. However, the label is most remembered for the Cowboys of this era, appearing in three Super Bowls in four years and claiming a unique spotlight in the American consciousness.