
♪ Unraveling the MYSTERY
The Big Bang Theory Season 12, Episode 23

So, if you want to solve
the MYSTERY of who stabbed
The Big Bang Theory Season 7, Episode 3

♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 12, Episode 2

♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 5, Episode 3

♪ Math, Science, History,
unraveling the MYSTERY ♪
The Big Bang Theory Season 7, Episode 3