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

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 10

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 12, Episode 15

and my MATH is worked out.
The Big Bang Theory Season 11, Episode 8

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