
Bosoms would not have said, "Howdy,"
in the 15th CENTURY.
The Big Bang Theory Season 2, Episode 2

...to function in 18th CENTURY Vienna.
The Big Bang Theory Season 4, Episode 21

Because one of the great minds
of the 21 st CENTURY...
The Big Bang Theory Season 1, Episode 4

...was a third CENTURY Roman priest
who was stoned and beheaded...
The Big Bang Theory Season 3, Episode 15

Why don't you have computers
and shit? It's the 20th CENTURY.
Breaking Bad Season 2, Episode 12