The Invisible Enemy:

and the arrival of a certain tin dog

I think I can say that by the time I got up to The Invisible Enemy I was starting to get my head around the mad universe of Doctor Who, I had gotten an explanation from none other than The Doctor himself as to why the Tardis is bigger on the inside than it is on the outside (here's the clip http://youtu.be/pvnKXOGYKM8). It hadn't taken me long to realise that the Tardis was a time machine after having seen two stories set in the future and two in the past. So as far as the Tardis, I was starting to understand what it was, however, when it came to The Doctor I still wasn't aware of who he was, what he was or were he came from. The Invisible Enemy was the fifth Doctor Who story I'd seen and looking back at it I think it was the first average story that I saw. Tom Baker and Louise Jameson are as good as ever but the story feels like it's aimed more at younger viewers than the previous four stories that I'd seen. The first time around that I saw it I had nothing against it, I enjoyed it but looking at it ten years latter, I can't help but notice that this "was" the first average story that I saw. I've got nothing against the swarm, on paper the concept of this new Doctor Who monster must have sounded like a good idea but I think that it could have been realised better. Now, for K-9, I still think looking back at K-9 now that the designer Barry Newbery did a pretty good job with designing K-9 and that they couldn't have chosen better than John Leeson for the voice of K-9. As a ten year old I liked K-9 but as a twenty year old, I've sort of divided the Doctor Who stories that I've seen K-9 in into ones that he was written for well in and the ones were he wasn't but on the whole I think I've still got a soft spot for the character, definitely a memorable creation. I think in the end that I can say The Invisible Enemy wasn't an excellent Doctor Who story but it wasn't a bad one either.