Name's the Same: Russell T Davies likes reusing names. Tyler is one of his favourites — here it is Vince's surname, and later it was to be Rose's surname in Doctor Who. There are also characters named Martha Jones and Donna, both of which were used as names of major characters in Doctor Who.
Prop Recycling: Stuart buys Vince a replica of K-9 in an attempt to buy his affection, and it plays a prominent MacGuffin role in the last couple of episodes. The replica is the BBC's actual K-9 prop.
A Spin-Off series, Misfits was initially commissioned by Channel 4. The series would have followed the characters of Hazel, Alexander, Donna (who was absent from the second series due to scheduling commitments) and Bernard from the original series, while introducing new characters. Although Davies developed draft scripts for four episodes and storylines for a further twenty-two, the series was cancelled before it went into pre-production. As a result of this decision, Davies pulled out of a deal that would have seen a series of Queer as Folk short stories published on the broadcaster's website, and vowed to not work with Channel 4 again, unless he has an idea that only works on that channel.
Screwed by the Lawyers: The streaming versions had much of the music replaced with banal soundalikes, causing significant damage to the story and atmosphere. Among the most frustrating examples is an early episode where the cast are out dancing and, in the original, react with delight to the iconic opening of ABBA's "Dancing Queen"; in the streaming version they inexplicably react with delight to ... something completely unremarkable and unrecognizable.