I'm sure that House isn't filmed anywhere near the Princceton/Plainsboro area, but in the credits tonight, Jim notice that they do pan across Carnagie Lake at the Washington Street bridge - hey, we could all be at the Princeton Record Exchange in about 5 minutes!
There used to be a local sign that amused me when I worked in the Princeton Engineering library - The Harrison Street bridge used to be out of commission so often that they finally closed it for repairs. They put up a three part sign on the route 1 end at the turnoff -
The "under construction" piece fell off after about a month, but for more than a year, we had "Warning, Harrison Street." The real warning was that this meant you probably had to take Washington Street, and it's traffic circle.