This is the vanity plate of Richard Chapman and Bill Dial (who would go on to form Mike + Bill Productions with Michael Piller).
Visuals: On a city skyline at night, a cartoon ostrich with blue feathers wearing an army helmet and binoculars is seen, briefly looking at us before searchlights appear in the background and the ostrich looks at them. The ostrich then yells "OH NO!", and then puts his head into the ground and a blue metallic Civil Defense logo circle drops down from the sky, shaking the entire screen. The circle has a white triangle and inside the triangle is the red abbreviation letters "CD" (standing for "civil defense"). At the beginning, "C H A P M A N / D I A L" in white fades in below.
Variants:
Technique: Cel animation.
Audio: An air raid siren is heard when the searchlights appear, the ostrich says his line (as mentioned in the logo's description), and then a crashing sound is heard when the Civil Defense circle drops down.
Availability: It's seen on the failed ABC pilot The Rowdies and the short-lived CBS series E.A.R.T.H. Force.