“Doctor Who” is back and your Doctor Who Flashcast returns too, regenerated and rejuvenated. Jason, Erika and Chip discuss Russell T. Davies return to the series, the tricky balance of creating a 60th anniversary reunion show that plays the hits, while also starting production on a whole new era of “Doctor Who.” We’re so excited that it’s back that we talked for a long time! Jason Snell, Erika Ensign and Chip Sudderth.