Set-top box - A device that enables a TV set to receive and decode digital television (DTV) broadcasts. A set-top box is necessary for viewers who want to use their analog television sets to receive digital broadcasts.

Does a digital TV need a set top box?

Digital TV signals are transmitted as a digital signal instead of an analogue signal, and as a result it requires either a digital set top box to decode the signal, or a TV that's capable of receiving digital TV signals. ... To watch digital TV, you either need a DTV set top box, or a TV with a built-in digital tuner.

What is the best digital set top box?