Ok This may sound like a very odd question, but their is reason i am asking. Lets say itunes allowed you to download something for free. Let say a TV Show. Is it possible for them to have that show expire after so many days? Example: Sally wants to watch a episode of Gilmore Girls in which itunes is broadcasting for free. However after she downloads it, she can only watch it for 5 days before it will expire and she can no longer watch it. Now lets say she watches it and wants to download another episode. But, Before she can do that, she must end here ability to watch her current episode before she can watch the next one for free. Sort of like blockbusters monthly rental program. You can watch as many movies per month as you want but you must bring the movie back before checking out any more.