I can't really describe this episode better than anyone else in this forum review. A great story line and the superb acting skills by all actresses are in their best. This episode is definitely in my top 5 episodes in season 1. I love the scene where the sisters end up forcing Prue to go downstairs to see what really happen when the phone's ringing. This is the first time she realized that they are back in the 70's.
There are also many hilarious&sad moments found in this episode. It will make you sit and won't go anywhere from the fisrt till the last scene.