courtesy of MFerris from TheFuselage.com:

How many LOST fans does it take to screw in a light bulb?

Answer: 135...

One to notice the light is burned out.

25 to argue weather the light bulb is burned out or just off.

One to check to see if the light bulb has a Dharma logo on it.

75 to discuss the significance of the light bulb and why it burned out exactly when it did.

2 to look up the “Meaning” of light bulbs.

2 to site references in classical literature about light bulbs.

1 to stand around and complain about how light bulbs have “Jumped the Shark”.

10 people will come from out of nowhere to say how they hate light bulbs and how they’ll never watch a light bulb again.

10 more to complain that light bulbs were better in season 1.

3 to discuss whether the light bulb is a hallucination.

5 to wonder if Kate will fall in love with the light bulb.

1 to check the serial numbers on the light bulb to see how they match up with "The Numbers”