I watched it for the first time in a long time. I have to say it was a really good episode, but I found myself getting lost a lot. Nice to see more than one doctor in an episode though.

I thought it was a good episode, not as good as it was hyped up to be though. The Zygons didn't seem to have that much of a part in it, it seemed like a gimmick to just have them in it for the sake of it. Not sure why Tom Baker came back, yeah he was one of my favourite Doctors but again it seemed too much like a gimmick. Like BPM I got lost too much, half the time I didn't know what was going on, I'll have to watch it multiple times to understand it fully. I hope the Christmas special is better.