Overall, I liked it as much or better than some of the Christmas specials. I think I understood all that they were trying to cram in as throwaway lines about the Silence and the TARDIS blowing up. I think Capaldi was great in his brief appearance and Matt played a good old man. But the one thing I HATE from Moffat is his constant use of characters actually saying "Doctor who?" over and over. No need for that for the first 48 or so years, don't know why we get it so much now. Another question, when the Angel grabbed Clara, why wasn't she sent back in time? They don't all have that power, is that it? Bits that made me smile that were kind of silly: when the Doctor meets Clara's fam in his non-clothes, Clara's using of the TARDIS as an oven, the wooden cyberman I will probably have more to say after a re-watch, but I hope with Capaldi, the mystery is not about the Doctor or timey-wimey or Daleks, but something new and sinister.