 " Anamnesis " was first broadcast on the Fox network on April 17 , 1998 . The episode earned a Nielsen rating of 5 @.@ 3 during its original broadcast , meaning that 5 @.@ 3 percent of households in the United States viewed the episode . This represented approximately 5 @.@ 2 million households , and left the episode the eightieth most @-@ viewed broadcast that week . 
