<P> Due to the time crunches of the fifth season, a "convincing period movie" was created in "less time than humanly possible" by members of The X-Files's production staff . Costume designer Jenni Gullet set about renting and creating vintage clothing from the fifties; art director Gary Allen collected older copies of National Geographic to make J. Edgar Hoover's office seem realistic to the period . Allen also constructed the bomb shelter, because his father was a contractor who had actually built several . </P> <P> Special effects supervisor Toby Lindala created the "alien spider" as well as a special facial appliance that allowed the creature to crawl out of Skur's mouth and into his victim . The final film was slightly bleached in post-production to give it a "vintage appearance". The production staff was pleased with the final product, noting that it does justice to both "the painful controversies of the 1950s" and The X-Files as a "contemporary TV series". The episode also contained several in - jokes . The song playing in the German doctor's house is a specially recorded cover of the popular song "Lili Marleen"; the song's record cover reads "Paula Rabwini", a reference to one of the series' producers, Paul Rabwin . Agent Hayes Michel was named after the fiancé of Mary Astadourian, one of series creator Chris Carter's executive assistants . </P> <P> In several shots, Mulder can be seen wearing a wedding band . This was David Duchovny's idea; he explained "That was just me, you know, fooling around . I had recently gotten married, and I wanted to wear it ." He later described the situation as "so Mulder to never have mentioned that he was married". Series creator Chris Carter later told Duchovny that the situation "creates a problem . If we ever do a show that takes place seven years ago, you'll have to be married ." However, Duchovny reassured Carter by pointing out that there were not very many episodes, if any, that had been planned to take place seven years prior to the events in this episode . The inclusion of the detail caused an "Internet frenzy" and the minor detail was never resolved on screen . </P> <P> "Travelers" premiered in the US on the Fox network on March 19, 1998 and in the United Kingdom on February 3, 1999 . This episode earned a Nielsen rating of 9.9, with a 15 share, meaning that roughly 9.9 percent of all television - equipped households, and 15 percent of households watching television, were tuned in to the episode . It was viewed by 15.06 million viewers . </P>

Why does fox mulder wear a wedding band