These promos are from early 2001. It was a temporary placement for Superchuck. It's just some 3 hour promos of Cartoon Cartoons. Cow & Chicken, Johnny Bravo, I Am Weasel, Ed Edd n Eddy, and Dexter's Laboratory. I don't have a Courage or Powerpuff 3 hour promos but 90sCartoonNetwork does.
Credit goes to YouTube for the video.