Come on, Steven! Since time is timey-wimmy, there is no reason there is no reason there cannot be two doctor. Really want to make fans happy, bring back David or Chris and a companion from an old incarnation! Make it 10too/rose,if you don't want to impact the current Who universe. The funding an be worked out. I know BBC is different than PBS (better), but PBS manages to be it. BBC does it all the time with PBS, HBO, ect.