#4 Eric Bischoff is revealed to be the man behind the nWo (Nitro - November 18, 1996)

WWE gained the upper hand in the Monday Night Wars, mainly due to the ground-breaking Austin/McMahon feud which saw WWE Champion, Stone Cold Steve Austin clash with his maniacal boss, Vince McMahon on a weekly basis.
The evil McMahon character was created out of necessity following McMahon's real life double cross of then-WWE Champion, Bret "Hitman" Hart at the 1997 Survivor Series.
18+ WWE segments - Watch here 😏
When fans loudly jeered McMahon at every opportunity, the WWE boss had no choice but to turn himself heel. However, the heel owner gimmick was actually popularised a year earlier by WCW boss, Eric Bischoff.
Bischoff like McMahon, was an affable on-screen announcer. However, on the November 18, 1996 Nitro, when confronted by Rowdy Roddy Piper, Bischoff finally revealed that he was a member of the nWo and was running the faction covertly and had been for many months.
This heel turn was a huge shocker and extremely influential in the history of wrestling as the plethora of heel owner/commissioner gimmicks in the two decades since have attested.
Big issue with Rhea Ripley revealed HERE