A subscriber link to a central office which employs data compression, forward error correction, and advanced modulation techniques and to connect subscribers to multiple communications networks to provide an array of services. Each screen can be tuned to maximize the quality of the digital data product on the intended display medium, so that the quality of the displayed product does not suffer. A liquid-cooled heat sink is associated with the housing and cools a cooling surface exposed within the compartment. In certain configurations, a matrix can comprise a polyester cross-linked with a polysaccharide, which can be an oxidized polysaccharide. The thermal resistor sensor is constructed of relatively thin layers of dielectric and electrically conducting materials having a low thermal mass, wherein the dielectric layers serve as support and electrical insulation to protect the sensor from environmental deterioration. The first soft under layer can be isolated from other layers in the medium by an exchange isolation layer.