From: Mistral mistral@centurytel.net
Besides, TWB comes first and hence takes canonical precedence.
That seems backwards. What about retconning? I've known shows to slip something in later that turns what the audience thought it knew on its head, yet does it in such a way that everything still makes perfectly logical sense.
Surely that requires careful planning, if not forethought, on the part of the scriptwriters so as not to violate existing canon? Whereas contradictions between episodes come from different writers each going their own separate ways, or even a single writer cheerfully ignoring what s/he wrote in an earlier episode?
Neil