Few times, most recently 2004-2005 (Pats-Red Sox).
There are actually 3 teams that have never made it to the World Series. They are the Seattle Mariners, the Texas Rangers, and the Washington Nationals.
The Seattle Mariners, the Washington Nationals, and the Texas Rangers are the only teams that have never made it to the World Series.
There have been alot of teams that have won the world series after starting 4-2.
Oakland Athletics. The Athletics won the 1989 World Series over the San Francisco Giants 4-0 and lost the 1990 World Series to the Cincinnati Reds 4-0.
Boston is the most recent city to have championship teams in all four major sports.
Only two teams go to the World Series: the American League champion and the National League champion.
Yankees
The Oakland Athletics beat the SF Giants in the 1989 World Series.
In the 2002 World Series, both the Angels and the Giants made the playoffs as wild card teams.
The Mariners and Nationals are the only two teams left to never have made a world series appearance.
The 1980 NFL champions were the Oakland Raiders. The 1980 World Series champions were the Philadelphia Phillies. The 1980 NBA champions were the Los Angeles Lakers.
The Cleveland Indians beat the Boston Braves in the 1948 World Series.