
Wolowitz, you will be completing a SERIES
of delicate surgical procedures...
The Big Bang Theory Season 2, Episode 23

I've put on Batman The Animated Series.
Your favorite.
The Big Bang Theory Season 10, Episode 6

The colors are based
on Star Trek: The Original Series.
The Big Bang Theory Season 1, Episode 13

Either the reason is predicated on a SERIES
of sub-reasons leading to regression...
The Big Bang Theory Season 2, Episode 1

For years, merciless thugs like Kripke have
made my life a SERIES of painful noogies...
The Big Bang Theory Season 2, Episode 12