 " Little Green Men " premiered on the Fox network on September 16 , 1994 , and was first broadcast in the United Kingdom on BBC Two on August 28 , 1995 . This episode earned a Nielsen rating of 10 @.@ 3 , with a 19 share , meaning that roughly 10 @.@ 3 percent of all television @-@ equipped households , and 19 percent of households watching television , were tuned in to the episode . It was viewed by 9 @.@ 8 million households . In addition , the episode won its time period among the " advertiser @-@ friendly " 18 @-@ 49 age ratings group . 
