You need your sleep for your cognitive
processing to PERFORM at optimum levels.
The Big Bang Theory Season 2, Episode 6
to PERFORM on them
during bath time.
The Big Bang Theory Season 12, Episode 17
and some will PERFORM those
better than others.
The Big Bang Theory Season 11, Episode 12
Well, Penny is on her way to PERFORM in
a one-night showcase production of Rent...
The Big Bang Theory Season 1, Episode 10
You and I are gonna PERFORM
a full backup, reinitialize...
The Big Bang Theory Season 3, Episode 12