This is the NFL's 100th season, and to celebrate, the league has launched a new series called the "NFL 100 Greatest." First up was the 100 greatest plays, a two-part series from NFL Films that concluded Friday night on NFL Network.

The list was compiled by 80 people selected by the Associated Press and NFL Media. Their conclusion? The "Immaculate Reception" is the greatest play in NFL history.

For the few unfamiliar: The "Immaculate Reception" was a play made by Pittsburgh Steelers running back Franco Harris at the end of a 1972 divisional round playoff game against the Oakland Raiders at Three Rivers Stadium. Facing fourth down shortly after Ken Stabler put the Raiders ahead with a late scramble for a TD, Steelers QB Terry Bradshaw fired a pass over the middle that deflected off Raiders DB Jack Tatum – at least that's what the refs ruled, as there was a rule at the time that would have nullified the play had the ball only hit the Steelers' John Fuqua, who was leveled by Tatum on the play – and ricocheted several yards back up the field. Harris grabbed the ball out of the air and raced up the sidelines, giving the Steelers the game-winning touchdown.

It was the Steelers' first playoff win in what was then their 39th year of existence. They would go on to win four Super Bowls later in the decade, and currently have six Lombardi Trophies (tied with the Patriots for the most) and sit second behind the Pats with 36 total playoff victories.

The No. 2 play as voted by the panel was "The Catch," the Joe Montana to Dwight Clark connection in the 1981 NFC Championship Game that sent the San Francisco 49ers to the Super Bowl for the first time.

Similar to the "Immaculate Reception," this was seen as a historical turning point as the balance of power in the NFC was perceived as having transferred from the Cowboys to the 49ers for the duration of the 1980s.

No. 3 on the list was "The Helmet Catch," New York Giants WR David Tyree's remarkable grab against the New England Patriots in Super Bowl XLII.

It helped set up the Giants' game-winning touchdown that prevented the Patriots from a perfect 19-0 record.

The rest of the list, which features plenty of other iconic, named plays, can be found here.