Dan Meth has made a sitcom map of the United States.
Naturally, New York City requires its own map.
Mr. Meth makes a cogent observation: "The untapped Williamsburg Hipster sitcom setting is plain to see."
Indeed. By the way, I'm surpised at the proportion of Midwestern to Southern sitcoms, especially given that the South is an inherently funnier region of the country.
UPDATE: Ha! Meth also maps the stunning diversity of first-floor layouts in sitcom houses.