show Doctor Who also featured the Movellans in the 1979 four-part serial Destiny of the Daleks who are revealed to be a race of robots who are quite willing to use a device that will kill all life (even human life) on Skaro and one of them is willing to manually activate the device. Another episode of the long-running British SF television show Doctor Who, entitled "Robot", explores implications of a robot programmed with a modified zeroth law instead of the first law as part of its Prime Directive. In the 1979 movie Alien, Special Order 937 was a classified retrieval order given by Weyland-Yutani to Science Officer Ash (who is later revealed to be an android) aboard the USCSS Nostromo, in which all other priorities are rescinded, which would have overridden protective protocols allowing the android to kill the crew. Actor Ian Holm's depiction of Ash leaves the possibility open for a version of the first law to exist as his attack on Ripley (though violent) is erratic and fitful as if he were fighting off strong inhibitions. It is also preceded by “sweating” white liquid even though the white liquid is later depicted as only leaking after an android that has been injured or damaged in some way. In the 1986 movie Aliens, the character Bishop (an android) says, "It is impossible for me to harm, or, by omission of action, allow to be harmed, a human being." No mention of either of the other laws is made. In the 1984 movie Repo Man, the character Bud talks about the "Repo Code", a parody of the Three Laws. "I shall not cause harm to any vehicle nor the personal contents thereof. Nor through inaction let that vehicle or the personal contents thereof come to harm..." The character J. Frank Parnell in the movie also resembles Asimov. In the Simpsons episode "I, D'oh-Bot", which first aired 11 January 2004, Professor Frink builds a robot which obeys the First Law (and presumably the other two, although they do not directly come into play). The 2009 anime series (released in 2010 as a film) Time of Eve is based heavily around the applications of these rules to androids, which are frequently discussed by the characters. The series explores out some various interpretations of the laws (such as what it means to allow a human to come to harm), and various loopholes