That guy needs to work on his fact checking, only 12 of the first 40 World Series went 7 or more (a few years it was best of 9 so not all those 7s were actually a full series), NHL expansion teams don’t actually tend to be good, and anybody shocked that Laker Celts was the NBA final just plain hasn’t been paying attention to the league those have been top teams for a while.
Nice call... Just a few years ago San Antonio was dominant in the NBA and the Thrashers and Blue Jackets have done a lot of strggling in the NHL.
World Series. He did say (and I did type) “televised”, so that’s what 1951 to 1990?
The other stuff is more recent happenings. NBA, NHL, etc.
Expansion teams, or league mergers. Jets v. Colts, is the classic example cited by conspiracy theorists about game manipulation.