A: We don't know. Light bulbs last longer than studio executives.
They were on the Earth before it was cool.
Stand back - I don't know how big it's going to get!"
How many South Americans does it take to screw in a light bulb? A Brazilian!
A: None-there weren't any light bulbs in the 13th century.
Only one; However, it takes an entire emergency ward to get it back out again.
A. Five!...Six!...Seven!...Eight!