The last network to offer Saturday morning cartoons will be dropping them soon. The CW Network was the last. I didn't know they did show cartoons then to be honest. Of course you can still watch cartoons anytime you want on a bunch of 24 hour networks made to just show cartoons.
When I was a kid I lived for Saturday morning cartoons. I would get up before they even came on and would watch the test pattern and farm reports. The cartoons would start around 7 am and go until around noon. This was the only time you could see cartoons, There was no Cartoon Network or Boomerang that air these shows 24/7 in today's world. I also remember that on a Friday night in September CBS would have a preview show of all the new cartoons for the new season which was starting the next day. I think I would be so excited I could hardly sleep that night in anticipation of seeing the new Hong Kong Phooey Show or The Pink Panther or the new season of The Road Runner Show. I would also devour the TV Guide that previewed the new cartoons too. It was all so great and oh so innocent. I'm glad I grew up when I did even if I couldn't watch cartoons except on Saturday mornings.