Doctor Who 9x10 Face the Raven

Finally saw this.
I cried.
( Spoilers will face the Raven )

Doctor Who 9x11 Heaven Sent

Now I've watched this one, which from the non-spoilery comments I saw last week, was raveworthy.
And now I understand why.
Oh my oh my oh my oh my.
( spoilers will be trapped for eternity )

Please DO NOT discuss the next episode "Hell Bent" here - I haven't seen it yet.