(SINGING IN GERMAN)
The Big Bang Theory Season 10, Episode 20
Like reenacting the ancient German practice
of trial by combat.
The Big Bang Theory Season 8, Episode 19
meaning German.
The Big Bang Theory Season 12, Episode 7
Quartz, from the
German "quarz"
The Big Bang Theory Season 12, Episode 2
Now, in German.
The Big Bang Theory Season 10, Episode 20