Link to original source as recommended by HN guidelines:<p><a href="http://www.cabletv.com/doctor-who-timeline" rel="nofollow">http://www.cabletv.com/doctor-who-timeline</a><p><a href="http://ycombinator.com/newsguidelines.html" rel="nofollow">http://ycombinator.com/newsguidelines.html</a>