Lead's first para could use a copy-edit (too many sentences begin with "the episode..."
"the performance of Anderson was especially praised." -- you mention Anderson before explaining who she is
"...along with the words "She is me.". " -- double period
You say the episode is "unconnected to the series' wider mythology" but then mention Scully's cancer. I haven't seen the series, but what I've picked up on, isn't her cancer part of the mythology? Or am I mistaken?
"...but many were reluctant..." - I would re-write to "...but many establishments were reluctant..."
Where is the Thunderbird Bowling Center located?
What is a pinspotter carriage? Is there a good wikilink for this?
"then-unmarried wife" - you mean future wife?
"The series was allowed to filming in the location..." typo
Italicize the Shearman and Pearson book
"greater attention to the relationship... -- where does the quote end?
"...lauded Anerson's performance..."
in a manner that was "offensive at works and just plain idiotic at best". -- is that supposed to be "worst"?