YES ... they lost to the New York Giants but lost by a score of 39-20...
The year 2000
Atlanta Falcons
8
Super Bowl XXXIII (33) was the last Super bowl the Denver Broncos won. That Super Bowl occured in 1999.
Super Bowl XXI the Broncos played and lost to the New York Giants ...
Superbowl XXXIII (33) was played in 1999. The Denver Broncos and the Atlanta Falcons played in the 1999 Superbowl. The Broncos won the game 34-19.
The Super Bowl played on January 15, 1978 between the Dallas Cowboys and Denver Broncos was Super Bowl XII.
The Broncos did not play in the 1985 Super Bowl.
There is no evidence that anyone named Tristen Carter played on the Denver Broncos squad during either of their Super Bowl winning seasons.
In the 1977 season the Broncos attended Super Bowl XII and played the Dallas Cowboys but lost by a score of 27-10
Super Bowl XXI, played January 25, 1987, was between the New York Giants and the Denver Broncos. The Giants won 39-20.
YES ... the Broncos played in both and won both ...