Bob Clampett's Beany & Cecil was spun off from Matty's Funday Funnies into its own series for ABC in 1962. Only 26 episodes were produced, then recycled over the course of the next few years. I will note that it isn't included in the network Saturday morning ads published between 1966-9, so the run may have ended on Sunday mornings around 1967-8.
Beany (Jim MacGeorge) and Cecil the Sea Sick Sea Serpent would have three short adventures in each episode. One of these featured Lil Ace (Paul Frees---who was working for everybody back then), a monkey astronaut, who figures into this particular short. Frees also voices the news reporter in "The Rat Race For Space".
As we discussed a ways back, Beany was briefly revived in 1988 by DIC and maverick animator John Kricfalusi, but fell victim to viewer indifference and was cancelled after 5 weeks. Beginning in those days, the networks were quicker to pull failing series, losing patience as well as ratings points. You can see, however, from the above short where Kricfalusi got some of his ideas for Ren & Stimpy.