WIBC-FM 93.1 is pulling the plug on "The Rush Limbaugh Show," a vastly popular program with conservative talk-radio fans and one of the most listened to in this market since it began airing on the station 22 years ago. The show's last airing on WIBC is set for July 3. Officials for WIBC parent Emmis Communications this month notified Los Angeles-based syndicator Premiere Networks that it would not extend its deal to air Limbaugh’s show.