The very first cartoon show Hanna-Barbera produced for television was The Ruff & Reddy Show which went on the air in 1957. It was followed by The Huckleberry Hound Show (1958), The Quick Draw McGraw Show (1959), The Flintstones (1960), The Yogi Bear Show (1961) and Top Cat (also 1961). In 1962, they gave us The Jetsons and also a strange packet made up of five-minute cartoons that were distributed and aired together but not marketed as one new series.
Over a year or three, they made 52 episodes of Wally Gator, 52 episodes of Lippy the Lion and Hardy-Har-Har and 52 episodes of Touché Turtle. The package was called The Hanna-Barbera New Cartoon Series or sometimes, The New Hanna-Barbera Cartoon Series. Neither title ever appeared on the air. I never heard either of those names at the time. They were only used when advertising the package to local channels.
Local channels that purchased it would program them every which way, usually with a local host between the different segments. In Los Angeles, the local host was Beachcomber Bill on Channel 13.
I thought the first six or seven H-B series were pretty good — especially Quick Draw McGraw, which has just been released on a Blu-ray you can purchase here. The trio of cartoons that formed The Hanna-Barbera New Cartoon Series was where I felt the studio beginning to downslide. The cartoons were obviously rushed and way lower in budget. They were clearly not the studio's "A" production at the time.
And what we have below is a whole bunch of Wally Gator cartoons. Daws Butler provided the voice of Wally, Don Messick was Mr. Twiddle and both doubled and tripled as other characters. You'll also hear Jean Vander Pyl doing all the female roles and Bill Thompson — who also voiced Touché Turtle — in a couple of guest roles. I don't think these are great cartoons but they're better than a lot of stuff the studio did in the years that followed…