For those of us who grew up in the DC area in the 70s and 80s the closest thing to a home baseball team we had was the Baltimore Orioles. My friends and I spent a good amount of time driving up I-95 to go to games first at Memorial Stadium and then at Camden Yards. The 70s and 80s were heady times for the Orioles who were perennial contenders in the AL East division against the hated (by Os fans) Yankees. The 70s and 80s were also a great time for Royals fans; their team dominated the AL West for years and they probably hated the Yankees almost as much as Boston fans do today since the Yankees seemed to always beat the Royals in the AL Championship Series.
Here’s an interesting twist though – the Royals and Orioles never faced off in the playoffs when they were both so strong. According to this Wikipedia page on the AL Championship Series the teams both appeared numerous times in the ALCS, but they never faced each other head-to-head. Checking out the Orioles team page confirms that they’ve never met, and that surprised me because in my notably fallible memory I could have sworn they had. All that’s to say that the fans who are old enough to remember the teams’ heyday should really enjoy this series.