leaving Takei and Altman's marriage still legal and valid. The episode revisits the concept of robosexuality as a social taboo in the future society depicted in Futurama and is more explicit in its analogy to prejudice and stigma surrounding homosexuality. The stigmatization of robosexuality and the term "robosexual" were first mentioned in the series pilot "Space Pilot 3000". The issue is expanded upon in more detail in the season 3 episode "I Dated a Robot" in which Fry dates a robot Lucy Liu, to the disapproval of the other characters. Co-producer David X. Cohen noted that the writing team had tried to maintain robosexual relationships as a taboo throughout the series. Broadcast and reception "Proposition Infinity" originally aired July 8, 2010, on Comedy Central. In its original American broadcast, "Proposition Infinity" was viewed by an estimated 2.013 million households with a 1.3 rating/2% share in the Nielsen ratings and a 1.0 rating/3% share in the 18–49 demographic, going down one-tenth of a point from the previous week's episode, "Attack of the Killer App". In interviews leading up to the premiere of season six, David X. Cohen stated that he considers this one of his favorite episodes of Futurama's sixth season. "Proposition Infinity" received mostly positive reviews from critics. Zack Handlen of The A.V. Club wrote: "This is the series I've been missing for years. It was goofy, spastic, over-stuffed, occasionally cruel, and bizarrely sincere." He graded the episode A−, praising the "No on Infinity" ad parody and reappearances of George Takei and Hedonismbot in particular. Sean Gandert of Paste wrote: "I’d like to see them lay off the contemporary commentary episodes for a bit, but other than that it was exactly what any fan of the show would hope for." Danny Gallagher of TVSquad stated that the episode's "robotic take on the needless hysteria and blatant hypocricy [sic] of gay marriage was not only steeped in satiric goodness, but it was downright hilarious." He felt that the episode's writing was an improvement over the previous episodes in the season and that it "really used the storied and rich history of the characters to its advantage." In particular, Gallagher praised Takei's cameo as one of the episode's funniest, even stating it to be one of the series' best. Alasdair Wilkins of io9 also praised the episode, calling it "a triumph for the new Futurama, and just the sort of episode that