Wonderama
Beginning in 1980, a documentary/magazine show for children (and hosted by teens) ran on Sunday mornings on WNEW-TV.  While this show maintained the Wonderama title, the show itself was nothing like the kids festival that it once was.  This hour-long incarnation ran until 1983; reruns edited to 30 minutes aired from 1984 to 1986 on WNEW-TV/WNYW on Saturday mornings.