Westinghouse Digital LLC is the maker and manufacturer of Westinghouse TVs. They were the first manufacturer of ultra high definition televisions which are also known ad 4D TVs.

High definition refers to the quality of the picture, and plasma refers to the type of screen. All plasmas will be high definition, but not all high definition TVs will be plasma.

An OLED screen is typically used in televisions that use a high definition display. The OLED light is what gives the high definition televisions a clear high definition picture.

HDTV Stands for High Definition Television

DirectTV is a satellite broadcast platform delivering both standard and high definition television. As all high definition televisions will handle both SD and HD content, DirecTV is fully compatible.