8x15 The One with the Birthing Video [5th or so watch]
2x01 Raven Black Part 1
Enjoyed the first series/pilot last year, so glad to see it back with adaptations of three more novels. Some have said it's just a standard murder mystery tarted up with some semi-Scandi scenery, but even if that's all it is, it's still effective.
[Watch it (again) in HD on iPlayer.]