The other night I watched the Third Watch/Medical Investigation shows with the shared storyline. This has been done before with other TV shows where a story starts on one show and finishes on another. I belive this happened with Murder She Wrote and Magnum PI. And I vaguely remember others. There was also a night on NBC when their characters from shows set in New York overlapped on to other shows. I wonder how this will be dealt with on DVD seasons. Will they just not finish the storylines? Will they include a bonus show from a different series? It's not nice to start a story (especially a whodunit) and leave people hanging.