Episode 308 is Sabrina, The Teenage Witch (1996)

When a sixteen-year-old high school student finds out she's a witch, her two aunts offer guidance on how to control her newly-discovered magical powers.

"Pilot"

On her sixteenth birthday, Sabrina Spellman finds out that she is a witch. However, instead of helping her, it actually makes life more difficult, especially after she gets on the wrong side of head cheerleader, Libby.