Cardcaptor Sakura (Anime TV)

Sakura Kinomoto is appointed Card Captor by the Guardian of the Seal, Kerberos, when she accidentally opens the magical book of Clow Cards and scatters them to the four winds. To protect the world from disaster she must capture all of the Clow Cards with the help of her friend Tomoyo Daijou, Kerberos and Syaoran Li.

http://www.animea.net/
Try here!

Where can u download episodes I know it's been completely subbed by different groups. There is more than 10 subbed episodes.

This is one of the best shoujo anime I really like despite the fact I was a primary school boy when I watched it.