We   can   deduce   much   of   episode   2   was   filmed   before   the   earlier   scenes   in episode 1! Let’s take a closer look at ‘Set Building #3’...

In   episode   1,   ‘If   I   Were   a   Carpenter’,   we   clearly   see   the   north-east   corner   of ‘set   building   #2’   prior   to   Oz   throwing   a   brick   at   Wayne   to   attract   his   attention.   In the   distance,   we   can   see   partly   constructed   ‘set   building   #3’   as   circled   in   red (image 38). However,   in   the   following   episode,   ‘Who   Won   the   War   Anyway?’,   this   building completely   disappears!   The   location   where   set   ‘building   #3’   once   stood   serves the   precise   location   where   Neville   recovers   his   ball   from   the   excavation   prior   to finding the bomb (image 21b).