In which series does Larry David, co-creator of "Seinfeld," portray a fictional version of himself?

Larry David portrays a fictionalized version of himself in "Curb Your Enthusiasm." This series, which he co-created, is a unique blend of scripted and improvised comedy that features David navigating daily life situations with his signature humor and social awkwardness. The show often draws from real-life experiences and interactions, making his character a hyperbolic representation of David's own personality and thoughts.

The other series listed do not feature Larry David. "The Office," "Parks and Recreation," and "Brooklyn Nine-Nine" are different shows with distinct premises and characters unrelated to Larry David's work or persona. "Curb Your Enthusiasm" stands out as a significant project that highlights David's comedic style and his ability to critique societal norms through a personal lens, solidifying its place as a cornerstone of modern television comedy.