CallMeTheDoctor
Super Freak
The 2 parter format is going last through the rest of the season. Then next year there is talk of a Sherlock style 3 episode season.
I don't mind the Sherlock episodic style. They at least cover the main plot, with the central sub plot implanted in each episode. The issue with 2-parters are that you kind of lose the edge (at least for me). I was thrilled with first part, now seeing the end just seemed kind of weak. That for me would be for any show in general, another reason why I feel cliffhangers suck. With so many shows you kind of stay surprised until something else takes over the gap til the new season starts.