For 10 points. "What is the isospin
singlet PARTNER of the pi-zero meson?"
The Big Bang Theory Season 1, Episode 13
So...if your PARTNER
is the chef,
Breaking Bad Season 4, Episode 8
He's my PARTNER.
Breaking Bad Season 2, Episode 2
Hank had a PARTNER, a businessman
named Gustavo Fring.
Breaking Bad Season 5, Episode 11
I mean, he's my PARTNER.
Breaking Bad Season 2, Episode 12