As I linked above, and to expand on what Jack the Sailor said,

CPB Programs & Projects:

"The Corporation for Public Broadcasting does not produce or broadcast programs. CPB awards grants to create programs that air on public broadcasting stations.

"In addition, CPB helps support the operations of more than 1000 locally owned and operated public television and radio stations nationwide, and is the largest single source of funding for research, technology, and program development for public radio, television, and related on-line services."

This page includes links to lists of funded programs and projects, which range from start-up support for series programs and support for documentaries, to support for related website developement, to support for equipment transitions to digital broadcast, etc..

also,

Who Creates the Programs?

"The programs that you hear and see on your favorite public broadcasting stations come from a variety of sources. The Corporation for Public Broadcasting does not produce or broadcast programs. CPB awards grants to create programs that air on public broadcasting stations."

Who Operates the Stations?

What is the Difference Between CPB, PBS, and NPR?

On the Grants page you can find some more details on how it all works.

It does require a little reading -- easier for you to do than for me to retype in order for you to read!

~ Becky in Tucson