♪ Sheldon and his BRAIN,
yeah! ♪
The Big Bang Theory Season 7, Episode 10
is getting a wedgie
from the rest of his BRAIN.
The Big Bang Theory Season 5, Episode 21
that can signal BRAIN damage.
The Big Bang Theory Season 10, Episode 16
that the BRAIN itself
is in two different quantum states,
The Big Bang Theory Season 10, Episode 20
♪ Sheldon
and his BRAIN... ♪
The Big Bang Theory Season 7, Episode 6