Perhaps we should just abandon the concept of linear time

There's one thing about the current series of Doctor Who that's getting a little annoying. The Doctor can visit anywhere, but the time where the companion comes from is always exactly contemporaneous with the air dates, even whenever it screws up things, as with Rose's missing year. I have no doubt that Martha's brother was born in 1986 (goodness, so young!). Aliens of London, the Christmas Invasion and the Cybermen invasion are all in her recent past, even though all those plus an uneventful year have happened since Rose stepped inside the TARDIS in 2005.

I can see why they do it: helps audience identification, plus they don't have to keep straight what order all the alien invasions happened in. But realistically it must be at least 2008. And Torchwood ought to be running parallel to this series, not 2006 as it's dated on some of the props. That's back when Nine was still around!