
We're giving a LECTURE at Berkeley later today.
We just... We had some time to kill.
The Big Bang Theory Season 8, Episode 19

The LECTURE was
on cosmic gas clouds.
The Big Bang Theory Season 7, Episode 17

Yeah, yeah. My mom gave me the
same LECTURE about my virginity.
The Big Bang Theory Season 5, Episode 20

Leonard, I've been working on an opening joke
for our LECTURE at Berkeley.
The Big Bang Theory Season 8, Episode 19

Now, you're going to love
the Perlmutter LECTURE.
The Big Bang Theory Season 5, Episode 6