With few exceptions, all video content that will be aired on television must have EIA 608/708 closed captioning for the hearing impaired as mandated by the FCC. Failure to comply with captioning regulates may result in fines, penalties, and/or rejection of your show by a broadcast facility.
In addition to TV closed captioning, virtually all federal agencies and most educational institutions must also add closed captioning to their Web-Based audio and video.
This new internet technology now us to add closed captioning to YouTube, Flash, Windows Media, QuickTime Podcast, and Real Player.