Senator Barack Obama’s infomercial drew 33.5 million U.S. viewers Wednesday night, according to Nielsen. The simulcast — the first of its kind since Ross Perot ran a political telecast on the eve of Election Day in 1996 aired on CBS, FOX, NBC, Univision, BET, MSNBC, and TV One between 8pm and 8:30pm EST. Perot’s 1996 telecast drew almost 22.7 million viewers. On an average Wednesday night, these networks draw a combined average of 30.3 million average viewers during the that half-hour daypart. In comparison, the final debate between the two presidential candidates drew 56.5 million U.S. viewers on October 15....