Serious about

Because I am serious about this.

Because I am serious about this.

— Breaking Bad S4E2

because it's not serious about this relationship.

because it's not serious about this relationship.

— Brooklyn Nine-Nine S3E7

I'M SERIOUS ABOUT THIS, LORELAI.

I'M SERIOUS ABOUT THIS, LORELAI.

— Gilmore Girls S2E12

So you're serious about her?

So you're serious about her?

— Gossip Girl S1E7

She was too serious about the whole thing.

She was too serious about the whole thing.

— Grey's Anatomy S3E22

This and the difference between "affect" and "effect" are the only two things he's really serious about.

This and the difference between "affect" and "effect" are the only two things he's really serious about.

— How I Met Your Mother S2E17

Hey, I was serious about we should play again sometime.

Hey, I was serious about we should play again sometime.

— Modern Family S4E14

You're serious about this?

You're serious about this?

— New Girl S1E18