To provide high-quality, research-based environmental audio descriptions, NCAM partners with GBH’s Media Access Group (MAG). MAG comprises both caption and audio description units (formerly the “Caption Center” and “Descriptive Video Service.”) MAG’s experience and quality in providing captions and descriptions are unrivaled, and extends back to the dawn of both accessibility solutions, as GBH invented captions and descriptions for broadcast television. NCAM has, for three-decades, been leading efforts to expand and improve accessibility in digital media including audio description for specific locations.