
♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 7, Episode 4

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

Well, okay, one MYSTERY solved.
The Big Bang Theory Season 6, Episode 8

♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 7, Episode 2

♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 12, Episode 10