
...and told him it's against the law
to have YELLOW cake uranium in a shed.
The Big Bang Theory Season 1, Episode 4

...Superman cleans his uniform
by flying into Earth's YELLOW sun...
The Big Bang Theory Season 2, Episode 11

All I'm saying is,
if they can cure YELLOW fever and malaria...
The Big Bang Theory Season 2, Episode 9

You can't cross
a double YELLOW line.
The Big Bang Theory Season 12, Episode 14

When he arranged to
get some YELLOW cake from Chad...
The Big Bang Theory Season 8, Episode 23