More than 33 million tuned in to watch Obama’s infomercial. Barack Obama’s campaign “infomercial” was the most-watched telecast in U.S. prime time on Wednesday, drawing an “American Idol”-size audience that even eclipsed the dramatic climax to the World Series. More than 33.5 million viewers tuned in to watch the Democratic presidential nominee’s paid, professionally produced 30-minute broadcast, which aired on three major networks and four smaller channels, Nielsen Media Research reported on Thursday. The three big networks alone, CBS, NBC and Fox, accounted for 25.5 million viewers combined – 1.2 million more than they drew in the same half hour a week ago, Nielsen said. The infomercial did not air on ABC because the network initially did not want to disrupt it’s regularly scheduled broadcast. As for the baseball audience, 19.8 million viewers watched the conclusion to the World Series championship as the Philadelphia Phillies beat the Tampa Bay Rays. The game ranked as the night’s No. 2 broadcast and was carried by Fox following Obama’s multi-network commercial. After the broadcast, which concluded with an appeal to a live audience, Obama campaigned for the first time with former President Bill Clinton, who called Obama the best person for the job, given the choice between Obama and Republican Sen. John McCain. Clinton said Obama makes the better decisions. Get more at Pamela on Politics.