When did The Captain Howdy end?

There is no known show or program called "The Captain Howdy". It is possible you are thinking of a different name or show, or that the show is a local or obscure program.

Could you please provide more information, such as:

* Where did you hear about "The Captain Howdy"?

* What genre of show was it?

* Any other details you remember about it?

With more information, I might be able to help you find the show you are looking for.