Doogie does a magic trick with a scarf for Megan. In real life, Neil Patrick Harris is an accomplished magician and illusionist and even served as President of the Board of Directors of Hollywood's Magic Castle. In addition to this, Harris has authored a series of young adult books entitled "The Magic Misfits."
Doogie's Blog Entry: November 7, 1989... I know that I'm supposed to be the smart one, but when it comes to the art of friendship, Vinnie's a genius.
This episode takes place from November 3 to November 7, 1989.