Every year, 8 teams qualify for the MLB playoffs. If you win your division, you make the playoffs.
162 and then playoffs
1994
They start October 4th this year.
The MLB team that has gone undefeated in the playoffs were the 1976 Cincinatti Reds swept the Phillies 3-0 in the NLCS and then swept the Yankees 4-0.
Billy Martin
Florida Marlins
Rays
Mlb.tv
1981 dodgers
The Washington Nationals / Montreal Expos franchise has the longest current streak of seasons not making the playoffs. They have not made the playoffs since 1981.
The two leagues in MLB went from two divisions to three divisions in 1994. That would have been the first year of the wildcard but that was the year the players went on strike and the playoffs and World Series were cancelled. The first year the wildcard was part of MLB's playoffs was 1995.