Hirst Systems is a provider of home entertainment, security systems and supplies. Located in Christiana, Pa., the company is a dealer for the plasma and LCD (liquid crystal display) televisions. It also installs home theater systems, as well as satellite TV and HDTV (high definition television). Additionally, Hirst Systems offers expertise in installing telephone/security systems for residential as well as small business customers. The firm s areas of specialization in security systems include access control systems, Closed Circuit TV systems (CCTV), video camera systems and enterprise digital recording systems.