The 1970—71 season was also the first season where the Penguins introduced a to the broadcast team, with John MacDonald taking the position in the booth.
However, the Penguins eliminated the Flyers from the playoffs in 2008 and 2009 and were eliminated by them from the playoffs in 2012, strengthening the rivalry.
Pittsburgh sold out 633 straight games from Feb.
Briere led the team in playoff scoring, recording five goals including three game-winners and eight points.
They defeated the Philadelphia Flyers in the first round in six games, but were defeated by the eventual Stanley Cup champion Washington Capitals in six games.
He finished with 50 goals and 109 points as the Penguins earned 51 wins on the season.