CBS and the Academy of Television Arts & Sciences are expected to announce at a news conference Wednesday that the twice-postponed 53rd annual Primetime Emmy Awards ceremony will be held Nov. 4 at the Shubert Theatre in Century City. That date could pit the Emmys up against a seventh baseball World Series game (to be broadcast on Fox), should the series run that long. The Emmys, first scheduled for Sept. 16 and then Oct. 7, were canceled both times in light of world events. (The ceremony originally was to have been held at the 6,000-plus seat Shrine Auditorium near downtown Los Angeles. The Shubert holds only 1,800 people.) Gary Smith, a veteran producer of awards shows and other live events, has been enlisted to serve as executive producer, says the Hollywood Reporter. He is replacing Don Mischer, who had to bow out because of a commitment to produce the opening and closing ceremonies of the 2002 Winter Olympics in Salt Lake City. Ellen DeGeneres is still expected to remain as host. This year, as last, NBC’s White House series “The West Wing” is going head-to-head with HBO Mafia program “The Sopranos” for top drama. “Sopranos,” about a New Jersey Mafia family led by tough but vulnerable Tony Soprano (James Gandolfini), grabbed the most nominations with 22, compared with 18 for “West Wing,” which portrays the inner workings of a fictional White House run by President Josiah Bartlet (Martin Sheen).