Interesting what some consider old school verses others. Guess it depends on what era you watched as a kid.
When I saw the thread title, I assumed it would be what I consider "old school" which is 1980's Hulk Hogan, Andre the Giant, Randy Savage, Million Dollar Man wrestling.
However, I did wonder if by "old school", there might be references to Bruno Sammartino, Killer Kowalski, Billy Graham, and Bob Backlund.
Never world have guessed some would consider "old school" what I consider 2nd wave WWF wrestling with HHH, Steve Austin, Brett Hart, and Undertaker/Mankind.