This episode reveals that Sandy is from Texas
First appearance of Flats the Flounder
In 'Texas', while mocking Sandy to lure her to the surprise party at the Krusty Krab, SpongeBob makes fun of the song 'Deep in the Heart of Texas', which starts with "The stars at night are big and bright".
Although This Episode Premiered In 2000 It Was Made In 1999 According To The Credits