What is PEG? According to Section 611 of the 1984 Communications act PEG is:

Public access channels are available for use by the general public.  They are usually administered either by the cable operator or by a third party designated by the franchising authority.

Educational access channels are used by educational institutions for educational programming.  Time on these channels is typically allocated among local schools, colleges and universities by either the franchising authority or the cable operator.

Governmental access channels are used for programming by local governments.  In most jurisdictions, the local governments directly controls these channels.