I found this post I wrote for a weblog's comments section concerning the subject to be very good, so I decided to share it here:
"It's unfortunate that we now only have one programming block carrying on the Saturday morning TV tradition of original and traditional shows on a network many online observers believe will not stay for long. Competition from cable/satellite TV, the Children's Television Act of 1990, and profitable newscasts may have ended the tradition on the other networks, but there is still a chance they could program successful time periods on Saturday mornings like they do in prime time.
If an effort were to be made to get the 1990 act of Congress repealed, the networks should seize the opportunity during and afterwards and get in contact with creators and producers who want their shows available to all audiences. Cable and satellite TV should not be these creators' only options to get their material on the air, as there could be no one willing to accept their material, even on 24-hour or niche stations. The networks also need to expand on their definition of what audiences for traditional Saturday morning programming may be and end this notion about animated cartoons being made especially for children. Theatrical cartoons such as the Merrie Melodies and Looney Tunes shorts were not created with a target audience in mind. Limiting your perspective will limit your subjects and potential audience.
When the Children's Television Act is gone and the new shows are getting created, the networks should tell advertisers about the potential audience on a day of the week when many people are still home, especially in the morning. Once everything is in place, have faith in your programming, listen to your viewers, and don't discourage creators as they work to bring something different to television.
I assure the networks great success on Saturday mornings just like every night of the week if they are willing to program this time period again. Paid programming, is the easy way out when it comes to revenue, but it’s also a sign for viewers that you have given up to pressure and you’re not trying to entertain them or keep them tuned to one station, even if it's a short-term solution. If you succeed by making Saturday mornings a priority again, advertisers, viewers, and animation lovers will have faith in your programming again. The future of television and animation in the USA will be secured."