♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 5, Episode 14
♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 12, Episode 12
# Math, Science, History,
unraveling the MYSTERY #
The Big Bang Theory Season 11, Episode 15
♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 5, Episode 16
Well, okay, one MYSTERY solved.
The Big Bang Theory Season 6, Episode 8