For the past five weeks (tonight is episode six) we have gotten to see Derek Jacobi and Ian McKellen be, well, vicious. After all, that's what the show is all about. Their characters have lived together for 50 years and they fight with each other. A lot. That isn't to say that they don't love each other deeply, they do. If they didn't they wouldn't have lived together for so long. Tune in and see how the season ends tonight.