Corus Entertainment has released its 2008 fall schedule for YTV, Discovery Kids and Treehouse topped by the launch of Nickelodeon Sundays, a brand new three-hour programming block on YTV.

The new block debuting on September 7 includes The Mighty B, The Naked Brothers Band, SpongeBob SquarePants and iCarly between 9 a.m. to noon every Sunday.

Additionally, Wolverine and the X-Men premieres on September 6, The Mr. Men Show is set to bow on Wednesday, September 3 and a slew of movies such as The Addams Family will dot the YTV sked all fall.

On Discovery Kids, SciQ bows on Monday, September 1 and Willa’s Wild Life from Corus Entertainment’s Nelvana Studio’s will also premiere on September 1.

On the Treehouse side of things, Sesame Street returns to the net at 9 a.m. on September 6 and new claymation series The Adventures of Bert and Ernie starts airing on Tuesday, September 2 at 4 p.m. and then air every Tuesday and Thursday in that timeslot.