 " Lisa the Vegetarian " originally aired on the Fox network in the United States on October 15 , 1995 . It finished 47th in the ratings for the week of October 9 – 15 , 1995 , with a Nielsen rating of 9 @.@ 0 , equivalent to approximately 8 @.@ 63 million viewing households . The episode was the fourth highest @-@ rated show on the Fox network that week , following The X @-@ Files , Fox NFL Sunday , and Melrose Place . " Lisa the Vegetarian " was later selected for release in a 2000 video collection of episodes titled The Simpsons – Raiders of the Lost Fridge . Other episodes included in the collection set were " Guess Who 's Coming to Criticize Dinner ? " , " King @-@ Size Homer " , and " Burns Verkaufen der Kraftwerk " . " Lisa the Vegetarian " was later included in The Simpsons ' season seven DVD set , which was released on December 13 , 2005 . David X. Cohen , Mark Kirkland , Matt Groening , and David Mirkin participated in the episode 's DVD audio commentary . 
