I always thought the idea of a media dimension was a cool idea, too bad the 3-D games were so ugly and blocky but I liked Rezopolis.
Come to think of it none of the games actually parodied actual TV networks or shows, it was just pirate world, computer world, fairytale land, etc. Considering the quality of the "jokes" Gex says maybe its for the best that their parodies aren't specific.