Time travel's Mr. Fix-It

In 'Journeyman,' a reporter turns problem solver, popping into the past. Viewers may wish he'd live it up a little.

What would you do if you could travel through time? This question has occupied imaginations as diverse as H.G. Wells, Ray Bradbury and Audrey Niffenegger, author of the recent bestseller "The Time Traveler's Wife." Would you seek to prevent great tragedy -- warn of 9/11, assassinate Hitler? Would you try to repair damage done in your own life by one bad decision, one chance remark? Or would you just buy a few dozen Starbucks franchises or stock in that little upstart called Microsoft?