Something new was happening to Children's Television, (aka, Educational Television), by the end of the 1960's. Media that was being produced by television creators was giving way to programming under the guidance of educational professionals.

The era of programming, "for Children of all ages", was being replaced by targeted content aimed at specific age ranges. On the surface that doesn't seem like a bad thing, but I noticed something that still bothers me - even today.

Old-style Children's (Educational) Television was broadcast at everybody, and as a result most shows were not aimed directly at kids, but aimed slightly above their heads! In this way content for kids had appeal to older viewers as well. But that also had the benefit of forcing kids to reach outside their comfort zone, or think above their age group.

The New Wave in kids programming heralded the end of old-style informational television shows like ABC's "Discovery" series, created by the ABC News division. The complaints whent something like, "if it's a kid's show it should have puppets, music and colorful colors everywhere".

1971 was the end of the line for ABC's "Discovery", Sesame Street took over the PBS system, but then wiped away every other type of children's content on commercial television as well, unless they too went down the puppet path to content presentation.

So, the end was near in 1970 when Discovery spent a full week at the United Airlines Maintenance Base to follow the path of a DC-8 jetliner undergoing scheduled inspection and repairs. This is what used to pass as "educational television". There are no puppets.