TV series example of the word

The Big Bang Theory Season 2, Episode 1
Did you change the contrast or brightness settings on the television?
(1) The location of a visual perception along the black-to-white continuum
(2) Intelligence as manifested in being quick and witty
(3) The quality of being luminous
(4) Shine
(5) Intelligence
cleverness
smartness
Dullness
Darkness
Stupidity
The Big Bang Theory Season 2, Episode 1
Did you change the contrast or brightness settings on the television?