The change comes from the fact that this week’s episode is presented in Blair Witch Project-style “found footage”, where spooky events caught by amateur video cameras are presented as something discovered after the fact.
In other words, if this story really was something recorded accidentally it’d be a bit weird for the terrified victims to have rendered a professional CGI opening sequence to really make their whispered confessions “pop”. The credits had to go.
Still, we shouldn’t despair – there was a pretty cool temporary Doctor Who logo to enjoy instead this week (basically a sci-fi word search, as you can see below), and the ordinary titles with music are back in place next week.
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