Knight Rider: Seeing Through Walls With Infrared Glasses?

Will someone please explain how this whole infrared-can-see-through-walls thing got started? It comes up everywhere: James Bond used it, One of the iterations of CSI used it, then KITT used it on last night's episode of the New and Improved Knight Rider (now with more humor!). Not that I particularly blame Knight Rider, because it's such a common meme. So, for the record, infrared cameras cannot see through walls. These cameras, like night vision goggles, pick up lower wavelength electromagnetic signals that we sense as heat. But the insulated walls of buildings are designed to block heat from escaping, essentially forming a...well, a wall between the camera and person in the building. Luckily, there are many excellent real ways for KITT to see through walls. The Lobster-Eye X-Ray Device (LEXID) uses X-rays (like Superman!) to see through walls. The LEXID looks like a flashlight, but it uses X-ray emissions to ...