The music playing after the show's theme song (while aerial shots of the city are shown), is the song "Teardrop" by the group Massive Attack. This song became the theme music for the television show House (2004).
When Andy goes through Prue's file, an article cut out of a newspaper refers to what happened in "Wicca Envy" - "Auction House Mystery Remains Unsolved, Impostor Heirs Suspected of Grand Larceny and Murder".
This is the only title with "Prue" in it. There is one show with "Paige" in the title, two with "Piper" and four with "Phoebe".
This is the first time we see Phoebe training in martial arts, which continues and develops throughout the rest of the series.