Grand Theft Auto 4 Easter Egg - Bullworth in Gta Universe

1. Go into any safe-house with a TV
2. Watch the TV
3. Flip through the channels until you see a show called "I'm Rich"
4. You will eventually hear the school Bullworth mentioned.

This was the school in which the game "Bully" was set, "Bully" was also a Rockstar game.