Series Two finishes in fantastic style, having another Time Lord in the mix (even if they don't label him this way) would be a solid idea for the end of a series even today. This story was well plotted, the revelations of the new TARDIS and someone fiddling with time were fantastic.

Steven's introduction was fantastic, having a slightly confused young man join the team after being introduced to him in the previous story was a stroke of genius. I like the fact they didn't make it obvious he was coming on board. Vicki and Steven are a really comfortable pair, they work together perfectly, it's a shame that they didn't both join at the same time when Ian and Barbara left then Vicki wouldn't have initially felt like such a replacement.

I think it adds a harsh, but interesting edge to the first doctor having him leave the time meddler stranded in 1066, he probably deserves it. I hope this character comes back as he is very interesting, he would be perfect for the new series.