Season's Greetings from Filmation

1973

The Brady Kids Animated Series

The Brady Kids Animated Series

From Eve Plumb's Julien's auction catalog

Miss Tickle from "Mission: Magic" 1973

Miss Tickle was a schoolteacher with magical powers in The Brady Kids episode "Teacher's Pet".  Filmation gave her a spinoff series called "Mission: Magic" starring Rick Springfield. (1973)

The Brady Kids Episode Link: 

The Brady Kids "Teachers Pet"

Mission: Magic Link

The Brady Kids Go TV Shopping

The Brady Bunch Kids Animated Series

Superman Visits The Brady Kids

Everything was going great for The Bradys until Jan’s kryptonite ruined everything. 

Local TV Guide Listings for The Brady Bunch

"The Brady Kids"

From Chris

@btoandbatbooks on Twitter

The Brady KIds

The Brady Kids animated characters started out being promoted looking like as this:

And they turned into this:

I assume the change came when Filmation ended up with the animated Brady Kids contract. This final version is in their style. They also produced the Archies animated TV series around the time.  In fact, when you watch these episodes, it looks like they used some of the same animation cels.