What show am i thinking of?

Question

it's about a man who never grows old...

i think he works for the police or something? maybe not. idk.

i just remember this one scene in a commercial for it where there was an old lady who said "i know you," and the guy (who can never grow old) said "not anymore."

also, his old partner died. i think.

this is all i know from commercials of it, but it's killing me not knowing the name!

Answer 1

Highlander?

Answer 2

that sounds so familiar, i cant put my finger on it though i don't remember the name sorry

Answer 3

New Amsterdam

Answer 4

Sounds like New Amsterdam. Unfortunately, Fox cancelled it last year. Fox does that...