Davey and Goliath were produced by Art Clokey, the animator responsible for Gumby on behalf of the Lutheran Church. They appeared on local stations around the U.S. in the 1970s, and then disappeared. Wikipedia has about all the history you would ever want on them.
Sadly, Art Clokey’s wife Ruth died Dec. 28, 2008.
See more about them at www.daveyandgoliath.org.