
to SPY on your fiancée.
The Big Bang Theory Season 12, Episode 12

to SPY on Amy and her date.
The Big Bang Theory Season 9, Episode 8

It's all the nail-biting tension of I Spy...
The Big Bang Theory Season 8, Episode 19

What if he's a SPY?
What if he's in a Beatles cover band?
The Big Bang Theory Season 8, Episode 20

I can't SPY with my little eye...
The Big Bang Theory Season 8, Episode 19