From Raids' "Kills bugs fast, Kills bugs dead" and Head & Shoulders' "That little itch should be telling you something" to the iconic, "It's the cereal even Mikey Likes".
But VoiceOver is not Harlan's only bag. If you're familiar with the "Porta-Booth" you'll know that Harlan also runs one of the biggest home studio supply site on the net. Complete with his own Mic.