receivers, or boxes, are stand-alone components that allow analog televisions to receive digital signals. As of 12 June 2009, most television signals in the United States stopped broadcasting on an analog signal and are now broadcast in digital only. Analog televisions without digital capability would not be able to receive a and would therefore be rendered unusable without a digital TV receiver.
Digital TV receivers convert digital signals into an analog signal, allowing an analog television to continue to receive digital television broadcasts. Digital converter boxes can be purchased at most home electronics retailers and are relatively easy to install and use. An antenna is connected to the converter box and the box is connected to the television. Depending on the converter box and TV, certain television functions, such as changing the channel, may need to be performed through the converter box itself and not through the television directly.
An External Digital HD Receiver is needed to receive High Definition Television Signals. A Digital HDTV Receiver (also known as a tuner or digital converter box) is also needed to properly display DVD’s. You only have until early 2009 to get the proper converter box to ensure you are able to continue to receive your TV signal.