Last month, President Obama signed into law the 21st Century Communications and Video Accessibility Act of 2010. This act includes a number of provisions to ensure that people with disabilities are not left behind as technology in television and the internet changes. New User Interfaces, closed captioning, programming, guides and menus need to be developed for set-top boxes.
This is a major stepping-stone that will ensure talking TV technology will become a standard application in every television and set-top box throughout the world over the next 5 years.
You can find the full Act here