Has Apple Computer's chief executive, Steve Jobs, found a way to connect the PC to the TV? With an enticing invitation proclaiming "It's Showtime," Jobs last week touched off speculation about how far Apple will go as it takes its next big step into digital video. On Tuesday, Apple will hold another of Jobs' marketing events in San Francisco to introduce what trade publications and analysts indicate will be his next campaign: an effort to transform the distribution of Hollywood movies as thoroughly as he has revolutionized the recording industry with the iTunes Music Store. A distribution deal with Disney...