Piper gets sick from Kiwana, "the horned fruit".
Season three, the episode is called "Just Harried."
In season 5 episode 4, the episode is called Siren Song
Leo and Piper get married in the third season and I think that its on the fourth disc. The episode's name is "Just Harried."
either season 5 episode 15 or season 6 episode 23
The episode where her father comes to visit her with his new wife and the charmed ones loose their powers. Piper has her first child Wyatt, in season 5 episode 15 called "The Day the Magic Died.
On the episode "A Call To Arms" Piper receives extra arms making her have 8. In this episode Piper and Leo receive powers of Hindu Gods. This is the first episode of season 7.
The episode is the season 3 final and is called All hell breaks loose
Season 6 Episode 16, in the end of the episode
Witch trial the frist episode of season 2
i dont remember the name but its season 2 episode 4
Billie Piper returned to Doctor Who in the season 4 episode Turn Left (episode 4.11) but she can also be seen briefly, not speaking, in three earlier episodes that season. She also appears in th two-part season four finale.
Billie Piper said that her favourite episode from the first season was 'Father's Day,' and her favourite from the second season was the two partner The Impossible Planet/The Satan Pitt. As far as I know she has not said what her favourite episode is overall.