Sheldon: Oh, look! Saturn 3 is on.

Raj: I don’t want to watch Saturn 3. Deep Space 9 is better.

Sheldon: How is Deep Space 9 better than Saturn 3?

Raj: Simple subtraction will tell you it’s six better.

Leonard: Compromise. Watch Babylon 5.

Sheldon: In what sense is that a compromise?

Leonard: Well, 5 is partway between 3 and…never mind.

The Big Bang Theory, Season 2: Episode 8 – “The Lizard-Spock Expansion”