It's been a hell of a final series either way...
I was curious about something and went back looking through all the NBA finals series results... This year's final series has been (so far) the closest finals in terms of game scores for a LONG time. The last series with two games ending in a one-point difference was the 1975 Warriors beating the Bullets, which is also the closest series in terms of scores with a point difference of 4 on average in those 4 final matches.
This year's final series also stands at 4 on average at the moment, so depending on how close tonight's (possibly) final match turns out to be, it could end up beating that '75 series in terms of tightness. If the Knicks beat the Spurs with 3 or less points difference, they did it.