http://www.youtube.com/watch?v=xJ3SI7KkvdM
(link to the 1969 Hanna-Barbera "Box" logo with the Swirling Star music)
EXHIBITS: Select syndicated and USA Network prints of The Scooby-Doo Show, including "Hang in There, Scooby-Doo."

http://www.youtube.com/watch?v=tqA1iy3MOlE
(link to the 1974 Hanna-Barbera "Large Rainbow H-B" logo with the Swirling Star music)
EXHIBITS: Select syndicated and USA Network prints of The Scooby-Doo Show, including "Creepy Cruise."

http://www.youtube.com/watch?v=MMvthydAhpY
(link to the 1968 and 1979 Hanna-Barbera logos; the "Zooming H-B" and "Swirling Star" respectively)
EXHIBITS: Post-1984 prints of "The Pebbles & Bamm-Bamm Show," "The Flintstone Comedy Show" (1972) and "Yogi's Gang." The 1979 logo (with the original Taft Broadcasting byline used from 1979-81) replaced the 1970 Screen Gems "S from Hell" logo that was originally used in '70s syndication.

http://www.youtube.com/watch?v=i30SHZX93cc
(link to the 1968 and 1983 Hanna-Barbera logos: the "Zooming H-B" and "Swirling Star" respectively)
EXHIBITS: Same as the previous link; except the Swirling Star logo is the 1983-86 version with the gold Taft Entertainment byline)

~Ben