What is "vitac"

VITAC is one of the United States' largest closed captioning and media access companies. The company is headquartered in Canonsburg, Pennsylvania, with additional facilities in Washington, D.C. and North Hollywood, California. The company captions over 220,000 hours of programming each year for over 1400 customers, including cable channels CNN and MSNBC, cable network Discovery Communications, productions for ABC Studios, syndicated and cable productions for Fox and CBS Television Distribution, off-network productions for NBCUniversal and cable and out-of-state productions for Warner Bros.. The company has captioned the Olympics. VITAC is a division of Merrill Corporation and employs 321 people.