6. Hulk Hogan is signed by World Championship Wrestling (1994)
In 1993, Hulk Hogan left the WWF after refusing to drop the WWF Title to Bret Hart, and making some comments comparing the WWF title negatively to the New Japan Title.
Hogan would drop the title to Yokozuna at the King of the Ring event in June 1993, and wouldn’t be seen on WWF TV again for 9 years.
Hogan was the biggest box office name to ever jump to WCW at that time. Hogan easily put WCW on the map and paved the way for Monday Nitro, making WCW an attractive destination for other superstars to jump over as well.