JF_Gophers
2147483647
From 1949 - 1958 at least one NY/Brooklyn team was in the World Series. If you don't count 1959, the streak extends to 1964.
BTW teams with a winning WS record (+.500)
Yankees 27-13
Cardinals 11-7
Red Sox 9-4
Athletics 9-5
Pirates 5-2
Reds 5-4
White Sox 3-2
Blue Jays 2-0
Marlins 2-0
Angels 1-0
Nationals 1-0
Only the Cardinals (3-2) have a winning record v the Yankees in the WS.
I presume the Twins (2-1) aren't listed because the Senators were 1-2?