While everyone (especially the media) always go on about Dr Who's shoddy production values, they always seem to forget the era of the show and the very small budget that the production team had to work with. There was no CGI in those days, everything had to be done from scratch with very limited funds. Considering what the production team on Dr Who in the 70's had to work with, it's amazing what they were able to come up with. Yes, there were undeniably monsters that look, from our sophisticated modern-day perspective, very silly like the virus nucleus (giant prawn), the phallic blob-sac that is Erato, the papier-mache headed Nimon, the muppet-like Mandrels, the bear-skin rug Taran woodbeast etc. But there were also a great deal of effects that were amazing for the time and are still impressive today. What about the superlative jungle set for 'Planet of Evil'? Surely one of the most convincing looking alien environments ever seen on tv. Then there's the wonderful sets for 'The Ark in Space', the fantastic model work used to depict the sandminer in 'Robots of Death', the jagaroth ship taking off in 'City Of Death'and the space ships in 'The Invisible Enemy, Underword and numerous other serials. The set designs on the period-set stories like Pyramids Of Mars, Talons of Weng-Chiang and Horror of Fang Rock are faultless. And Season 18 was a huge leap forward in terms of sets and special effects - the model work on The Leisure Hive looks wonderful, the Marshmen in Full Circle still look good, the sets for The Keeper of Traken are gorgeous and Warriors Gate is one big SFX triumph.
I think we need to remember how much was actually achieved on such a limited budget and admire the ambition and imagination of the people who worked on the programme.