You can find them on Boomerang from Cartoon Network.
The cast of Saturday Morning Cartoons - 2008 includes: Keenan Rogers as Participant
Of course people have noticed.
In the 1973 preview of new Saturday morning cartoons on ABC, hosted by Burns and Schreiber.
Because ratings for them have dropped drastically since the inception of cable channels that air cartoons 24 hours a day like Cartoon Network & Boomerang. Also, it is much easier to access cartoons via smart phones & the internet at any time viewers wish so there's no reason for kids today to specifically tune into Saturday morning television.
Try one of the links below.
Children between the ages of 5 and 12- apex
Saturday Morning with Riders was created in 1992.
Saturday Morning Apocalypse was created on 2010-09-28.
Saturday Morning - album - was created on 1975-03-01.
Saturday Morning - 1971 is rated/received certificates of: USA:GP
Saturday Morning Confusion was the title of a song by Bobby Russell
Saturday Morning - 1922 was released on: USA: 3 December 1922