Wikipedia:Articles for deletion/An Unearthly Child (pilot episode)
I was thinking to merge into An Unearthly Child at first, as a section within the more obviously notable first episode article. However this is already quite a sizable article, with seeming justification to be so, so on the whole  suggests that the best and most readable structure is as it is here, as two articles
— NONE, NONE
Stance: keep
Cited policy: WP:UNDUE (Wikipedia:Neutral point of view)