Why We Need Guys, Yet Again
Because women would never get around to hooking a Guitar Hero game up to their Christmas lights display. (Nice finishing touch there, dude.)
In his explanation, Ric makes it clear that the point is to play the game:
When you play, you watch only the Christmas lights, but the audio you hear is from the Wii, so your flubs are broadcast for all to hear (people in cars can tune 99.1 and crank it up as loud as they want.)...A video screen is on the driveway showing the game video, but if you want to be on the high score list you have to make it through the whole game only watching the Christmas Lights.
Of course I got this from Dave.