There’s a long tradition in sci-fi and horror of the truth being covered up and a false story given to the public. I’ve always been completely fascinated by what these stories might be, which is why just about my favorite special feature ever made for DVD is a 45-minute documentary added to The Blair Witch Project, a film that I almost certainly love more than you do, that incorporates fake local news reports about the missing students and some 16mm clips from a cheesy 1971 TV series called Mystic Occurrences. I just eat up this kind of stuff.
So when Doctor Who came back in 2005, the BBC went to town and created “in-universe” websites to support the show. You could visit Conspiracy Clyde’s site shown in episode one, and a site that Mickey created that took up the flame, and even UNIT’s site, with the all-access password the Doctor used in this episode: buffalo. At the end of the episode, Mickey is reading the Evening Standard with its big headline, “ALIEN HOAX.” I want to read that article.
(As an aside, if you enjoy Doctor Who and also eat up this kind of stuff, I highly recommend the novel Who Killed Kennedy by David Bishop, which is presented as an “in-universe” expose of UNIT, written during the days when the Third Doctor was fighting Silurians and Axons. The original novel is long out-of-print, but you can dig through a delightful e-book re-presentation of it at TSV.)
Our son approached this as he often does: recovering from a super-frightening cliffhanger by enjoying the pants off of the rest of the story. People grumbled at the time about the farting and the Nickelodeon gak and slime when one Slitheen explodes, just as they grumbled about the burping Auton in episode one, but these were of course splendid additions to the show for its younger viewers.