
"Doctor Who does Eurovision in space." It's an irresistible premise, but one fraught with peril. The world's biggest, campest song contest has a very specific tone and, on a practical level, is an enormous undertaking that would be hard to convincingly replicate even on a Disney-enhanced budget. There's also the very real possibility that the episode may not air on BBC 1 in the UK at all, if the FA Cup final overruns...
Then there's the music. Murray Gold is a frequently wonderful composer, but coming up with not just one, but a whole bunch of original songs is a huge ask. It could all have gone so very wrong.