CGI special effects on the small screen are still a bit dodgy, and very hard, and expensive, to get right. There are other effects that are very impressive. It's still hard for me to believe that the Weeping Angels in Blink were actually actors in silver paint. Classic Doctor Who. But I am trying hard to look beyond the British Invaders universe.
Let's go back to a classic. I love picking holes in Fringe but it is no X-Files. And if we're talking classic X-Files we have to be talking about the scary episode Squeeze. Eugene Tombs was a splendidly creepy bad guy and the scenes when he distorts his body to climb through a narrow chimney is really impressive. The special effects guys did a great job and, along with some thoroughly nasty sounds, it makes for a terrific episode.