
Uh, that's not even a MATH symbol,
that's just Charlie Brown's hair.
The Big Bang Theory Season 10, Episode 15

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 12, Episode 20

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 20

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 5