The Montreal Canadiens have made the playoffs the most times.
Every team has made the playoffs in at least once year. The Columbus Blue Jackets made the 2008-09 season playoffs, making it their first time to qualify for the playoffs. Before that, they were the only team not to make the playoffs.
The Boston Bruins
The Houston Texans 2012 answer: all NFL teams made it to the playoffs.
I am no expert, but im sure every NFL team has made it to the playoffs, the houston texans have recently made it to the playoffs, so it cant be them.
Every NHL team has made the playoffs at least once. Atlanta and Columbus have only made it once.
Well, every NBA franchise has made the playoffs at least once. A team like the Thunder, having been created recently, has never made the playoffs under their current name, but as the Sonics, have.-but that doent matter cause they moved so the only team never to make the playoffs is the bobcats
In MLB, no. With the Tampa Bay Rays making the playoffs in the 2008 season, all 30 MLB teams have made the playoffs at least once.