They DO have episodes of Medium on NBC.com.  Yea!  I should have looked sooner.  I wouldn't have had to miss any episodes once Lost started airing at a later time.  They only had the two latest episodes.  Great ones, though!  I'm still deciding whether Medium is a show I will eventually buy on DVD.  My rule is that it has to be a show I want to watch more than once - unless it's insanely inexpensive.  I really like the family stuff in the show, but not sure I would want to watch episodes again and again.  It would be great to catch up on all the first season episodes I didn't watch, though.