I too thought I was the only one who remembered Colonel Bleep (although I had forgotten his name momentarily when I was in my early twenties, but my twin brother set me straight soon thereafter), as many in even my high school knew not whereof I spoke when I uttered the name, Colonel Bleep. I saw some episodes on YouTube last year, which made me recall with much fondness my childhood recollections of making sure I caught every episode on the weekday cartoon show, most particularly that opening countdown prior to the rocket launch.
As I look at the episodes on YouTube nowadays, several features of the cartoon seem rather peculiar, to wit: Col. Bleep needs to wear a helmet even on his home planet, whereas his associates Squeak and Scratch never needed to wear helmets, no matter where they were in outer space or which planet they were on. Interesting too, that Col. Bleep never walked, but pedaled that strange unicycle no matter where he went - even on his home planet! But to compare this cartoon, the first color one made for TV, with the likes of the successors, viz., Clutch Cargo, Crusader Rabbit, Rocky & Bullwinkle, and Bugs Bunny, is like comparing the Model T Ford to the Motorama models. I do appreciate, however, that there are a select few that still recall with much joy and enthusiasm the erstwhile escapades of Colonel Bleep!