Automatic dating machine
In its original broadcast, "Lisa's Date with Density" finished 63rd in ratings for the week of December 9–15, 1996, with a Nielsen rating of 7.4, equivalent to approximately 7.2 million viewing households.
It was the fifth-highest-rated show on the Fox network that week, following The X-Files, Melrose Place, Beverly Hills, 90210 and Party of Five.
The influence of Nelson's friends Jimbo, Dolph and Kearney proves to win out when they convince him to throw rancid Cole slaw at Principal Skinner's house.
Skinner immediately phones the police, and the four flee.
This was the first episode to revolve around Nelson, and was done to partly explain why Nelson acts the way he does.
Lisa remarks that Nelson is "like a riddle wrapped in an enigma wrapped in a vest", a reference to "a riddle wrapped in a mystery inside an enigma"; this was Winston Churchill's opinion of Russia at the outbreak of the World War II.
General Machine-made Diagnostic Features: Machine-made bottles will exhibit most or all of the diagnostic characteristics explained and illustrated below.
The offset is a function of the orientation of the parison relative to the two molds (parison and blow molds) used on the particular machine, or occasionally, to the hot parison "sticking" to the neck ring of the parison/blank mold when transferring to the blow mold (Ceramic Industry 19-15).
Lisa realizes that Nelson is always going to be who he is and decides to end the relationship.
In the subplot, Chief Wiggum arrests a scam artist for telemarketing fraud.
After school, she continues to watch Nelson and develops a crush on the school bully.
Lisa tries to let Nelson know how she feels about him by getting Milhouse to pass a love note to him in class.
The authors of the book I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide, Warren Martyn and Adrian Wood, called it "impressive" how "even after Nelson has beaten [Milhouse] up for apparently making a pass, [Milhouse] will still do anything for uncaring Lisa." Marge's line "When I first met your father, he was loud, crude and piggish.