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"Spoiler alert.
When I see you I'm gonna spoil it."
The Big Bang Theory Season 9, Episode 19

Spoiler alert:
20 minutes in,
The Big Bang Theory Season 7, Episode 21

- Spoiler alert, SPOILER alert.
- What?
The Big Bang Theory Season 4, Episode 3

Oh, SPOILER alert.
He was worried about nothing.
The Big Bang Theory Season 8, Episode 7

Man, call SPOILER alert
before you say things like that.
The Big Bang Theory Season 2, Episode 12