Sakura, the Past, and Clow Reed
Wondering what will happen once all the Clow Cards have been transformed, Sakura uses the Return card to travel back in time to talk with Clow Reed. Sakura meets with Clow Reed and he answers her questions, but during the experience, Sakura realizes that Clow Reed's house is the same one that Eriol is now living in.
Aired 07/03/2000EP 68 - Sakura, the Past, and Clow Reed

1998
Cardcaptor Sakura
One day, Kinomoto Sakura, a 4th grader stumbles upon the mysterious book of Clow. Upon opening it and reading the name of The Windy aloud, Sakura scatters the cards to the winds. Sakura is elected and appointed by Keroberos, Guardian of the Cards to capture the remaining cards. With her friend Tomoyo and rival Syaoran, Sakura begins an adventure that will forever change her.