Tomorrow starts the new BBC 3 sci-fi series Torchwood.
It’s a spin-off of Doctor Who centered around the character “Captain Jack” from the first new Doctor Who series.
If I understand the algorithm correctly the next Doctor Who spin-offs will be:
Dowchroot, Thoodcrow, Drootchow 
If they are going the way of Star-Trek, SG, I would like also to see more cross-over between series. That would be cool.
Even more cool, a cross-over between all BBC series:
- Seeing a blue police box loudly appearing in the midst of Sherwood forest and a Doctor using its sonic screwdriver to help a slightly too young Robin Hood would be a delight
- What treat it will be to watch captain Jack hunting aliens in Little Britain
- Can you imagine the Daleks trashing the glomourous carpet of Hotel Babylon?
Ok, I’ll stop here (can I just suggest the cybermen to pay a visit to that guy in Extras :-D)