 Other regulars were selected for their entertainment or information value, in contrast to those who offered more cerebral conversation; Carson refused to discuss politics on "The Tonight Show" out of concern it might alienate his audience.His preference for access to Hollywood stars caused the show's move to the West Coast on May 1, 1972; "The Tonight Show" would not return to New York until 2014 when Jimmy Fallon took the hosting reins.When asked about intellectual conversation on "The Tonight Show", Carson and his staff invariably cited "Carl Sagan, Paul Ehrlich, Margaret Mead, Gore Vidal, Shana Alexander, Madalyn Murray O'Hair" as guests; one television critic stated, however, "he always presented them as if they were spinach for your diet when he did [feature such names]."