Closed captioning is indeed available on the Public Broadcasting Corporation. This feature enhances accessibility for viewers who are deaf or hard of hearing, allowing them to fully enjoy programming by displaying spoken dialogue as text on the screen. The majority of programs aired by the Public Broadcasting Corporation include closed captions, and they are typically available during live broadcasts as well as on pre-recorded content. Additionally, many online streams and episodes offered through the Public Broadcasting Corporation's website also provide closed captioning options. For specific details regarding which programs support closed captioning or to find instructions on how to enable this feature on various platforms, viewers may want to visit the current website of the Public Broadcasting Corporation, where additional resources and information are available.