The 1970 Major League Baseball season: The Seattle Pilots relocated to Milwaukee and became the Brewers, thus returning Major League Baseball to Wisconsin for the first time since the relocation of the Milwaukee Braves to Atlanta following the 1965 season.
Major League Baseball returned to Seattle in 1977, when the Mariners began play.
NBC was the exclusive national TV broadcaster of MLB, airing the weekend Game of the Week, the All-Star Game, both League Championship Series, and the World Series.