When does piper first appear in charmed?

Piper Halliwell first appears in the pilot episode of "Charmed," titled "Something Wicca This Way Comes," which aired on October 7, 1998. She is introduced as the middle sister of the Halliwell trio, alongside her siblings Prue and Phoebe. Piper is depicted as a highly responsible character who runs a restaurant and struggles with her newfound magical powers.