Only 1, but it takes them 15 episodes to do it.
Two. One to put it in and one to complain that he never screws anything anymore.
Just one. They hold it in place while the world revolves around them.
Just one, but the light bulb is going to need to change itself.
To get to the other side!
Because only the top 1% can stay above water.
Twenty. 1 to hold the bulb 2 to turn the ladder and 17 to be on the guest list.
Only one, but an extra 15 to repost.
15 or 16
Guesu