Rob Reiner

[Ope3]

The office, both versions, the rocker, almost famous, parks and rec, modern family, even the fighter was done in a similar way as when Harry met Sally, lots of modern works def took influence from Reiner

Also Seinfeld & Curb Your Enthusiasm are quite indebted.

Jerry Seinfeld Pays Tribute To ‘Seinfeld’ Collaborator Rob Reiner After “Impossibly Sad” Death: “Our Show Would Have Never Happened Without Him”

Jerry Seinfeld remembers 'Seinfeld' champion Rob Reiner after "Impossibly Sad" death: "Our Show Would Have Never Happened Without Him."

deadline.com