Board Thread:The Reference Desk/@comment-162.239.168.41-20150824232058

Does anybody know what the longest (in terms of minutes of screentime) the longest, uninterrupted string of stories is? The longest I can think of off the top of my head is "An Unearthly Child" into "The Daleks" into "The Edge of Destruction" into "Marco Polo," but there may be a longer one. Thanks. 