The song is called Zavelow House and it is by Owsley.
season 8 episode 16 "engaged and confused"
He does return one more time in a special guest appearance for the 150th episode. The episode is called The Seven Year Witch and is during the 7th season. Only Piper has real contact with him though.
That episode is called "X-Cops," and it is Episode 12 of Season 7.
ELO - Mr.Blue Sky
It was canceled because of low ratings and an episode called organs. Comment: What episode called Organs? Do you mean Dark Harvest, when in the beginning Zim gets hit with a ball in the stomach, and yells, "Ow, my squeedily spoog!" Because I thinks that's what your talking about. And it wasn't canceled because of an episode, it was canceled because other shows took over the ratings in its time slot. I.E. low ratings
Forever Charmed
It's Called "Forever Charmed"
The first episode of Season Four. I believe it was called Charmed Again.
Leo's first appearance in Charmed was in the first season, episode 3. It's called 'thank you for not morphing.'
that episode is called scry hard
Charmed Again
season 8 episode 16 "engaged and confused"
It's called the Celtic wheel of being.
Kill Billie Vol. 2
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.
If you are talking about the episode called Dark Passge, the song at the beginning is 'Catching Up' by Orange, the same band that did the theme song for it.
"I've Got You Under My Skin"