PHILADELPHIA, PA - APRIL 30: Adam McQuaid #54 of the Boston Bruins drops to the ice in pain during the second period against the Boston Bruins in Game One of the Eastern Conference Semifinals during the 2011 NHL Stanley Cup Playoffs at the Wells Fargo Center on April 30, 2011 in Philadelphia, Pennsylvania. (Photo by Bruce Bennett/Getty Images)
19 -- Number of years since the Boston Bruins last made the Conference Finals, dating back to their being swept in the 1992 Wales Conference Finals at the hands of the Pittsburgh Penguins.
The only other Eastern Conference team that hasn't been to a conference final during this span is the Atlanta Thrashers, who did not enter the league until the 1999-2000 season.
In their forty-three year history, the Flyers have never gone more than five seasons between Conference Final/Stanley Cup Semifinal appearances.