Last Saturday's episode of Doctor Who was okay, I guess (spoilers)

It didn't knock my socks off and felt a bit underwhelming until the end. I enjoyed Madame Vastra calling Clara out on her bullshit, as well as her relationship with her wife Jenny. Why isn't there a spinoff starring those two? Eleven calling Clara and asking her to stay with Twelve, along with Peter Capaldi's performance, and the aforementioned Vastra and Jenny saved this episode from sucking.