They have made the playoffs six times 1999-2009, with a record of 4-6; they reached Superbowl XL in 2005 but lost to the Steelers.
The Cowboys have appeared in the playoffs 30 times between 1966 and 2009.
The past 30 years would be from the 1980 season. The Steelers made the playoffs 17 times since 1980.
Playoff appearances (11)NFL: 1983, 1984, 1987, 1988, 1999, 2003, 2004, 2005, 2006, 2007, 2010
The Jacksonville Jaguars have Been to the playoffs once.
They have been to the Stanley Cup finals 4 times and countless playoffs.
The Miami heat been in the NBA playoffs 4 times
Through the 2012 season, the San Diego Chargers made the playoffs 17 times.
27 times
Zero. They only made the playoffs in 2007 with him on the team and lost in the wild card round to the Seattle Seahawks 21-20.
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The Cowboys have been in the playoffs 29 times since they became an NFL team in 1960.