You can view all Code Lyoko episodes on YouTube. Simply head to YouTube and type in 'Code Lyoko 28' and it should be the first result (Code Lyoko Episode 28 - Uncharted Territory).
Episode # 1 : "Teddygozilla" .
Teddygodzila
The first episode of Code Lyoko, aired in 2003, is called Teddygozilla. The original concept for Code Lyoko was turned into a short pilot entitled Garage Kids in 2001.
Yumi does not die at any point in Code Lyoko.
The first episode of Code Lyoko is called Teddygodzilla. There is a 2-part prequel called Xana Awakens which people sometimes mistake for the first episode but it isn't. It is good to watch that as it explains a lot of the series.
the chips are down
He go's to lyoko in episode 65 "Final Round" the last episode of season 3
Megavideo
yes. MoonScoop decide to come out with a new season of Code Lyoko. The first episode of season 5 premimed 2/13/09
its episode 25 code earth
Yes, there are two Code Lyoko Christmas episodes. Season 2 episode 19 - Cold War and season 4 episode 14 Distant Memory.