 When the series was started proper, there was "Episode 0", featuring  certain characters in the series. One of these characters was Tex,  who was using a camouflaging device at one point. Despite the fact  that the character would not be in the early episodes, many people  believed they saw Tex many times early in the series, using this  camouflaging device. Fans went especially crazy when Lopez, a brown  character, was standing in the far background against a dark brown  wall, not part of the scene. During the time the camera was faced  that it could see him, Lopez moved a little, and all most viewers  could see was some sort of movement near the wall, but could not see  a character itself. They assumed this was Tex, but it was cleared up  in an audio commentary for the DVD.