Four members of an eastern Iowa family are headed on their first trip to Disney World, thanks to the T-V show “Who Wants To Be a Millionaire?” Linda Starbuck of Clinton won the vacation as a grand prize, but didn’t have to face the cameras or the pressure in New York City. Starbuck was playing the enhanced T-V version along with the show and entered the contest through “”. She said the interactive questions are actually the same questions that are on the television. Starbuck, her husband, her daughter and son-in-law are on their way to Florida for the five-day vacation. Show host Regis Philbin will preside over the opening of an attraction at Disney World on Friday that focuses on the quiz show. Starbuck doesn’t know what to expect. The new Disney attraction gives guests a chance to experience what it’d be like to be on the show, answering trivia questions for prizes.