Teletoon
(launched in 1997)
IMDb; official website; TV Tropes; Wikipedia

This is a Canadian network that I've never actually seen, but some of the shows I watch on American networks originated here (or aired more or less simultaneously here and on American networks). It has also acquired shows from other countries, such as the U.S., but I'll only be listing original Teletoon series (and co-productions)

Angela Anaconda (10/4/1999 - 12/10/2001; aired on Fox Family Channel in the US)
Spy Groove (6/26/2000 - 7/13/2002; 13 episodes aired on Teletoon, and 6 of those on MTV in the US)
Undergrads (6/30/2001 - 11/11/2001; originally on MTV in the US)
Totally Spies! (9/2/2002 - 3/19/2008; on TF1 in France and ABC Family/Cartoon Network in the US; s6 aired in 2014-2015, but I didn't see it)
Clone High (11/2/2002 - 4/13/2003; aired on MTV in the US)
Skyland (11/26/2005 - 5/25/2007; aired on France 3 in France and Nicktoons in the US)
Total Drama Island (7/8/2007 - 11/29/2008; aired on Cartoon Network in the US)
My Babysitter's a Vampire (10/9/2010; TV movie; aired on Disney Channel in the US)
My Babysitter's a Vampire (3/14/2011 - 12/6/2012; aired on Disney Channel in the US)