Some newer TVs will have a digital tuner that will work. Otherwise ..................
From: [broken link removed] (a Dept of Communications, Energy & Natural Resources website)
How will DTT be received?
DTT will be received through an aerial and passed through a decoder - a set-top box, or integrated receiving device, that will decode the signal received for display on a TV screen. A set top box will convert the incoming digital signal to analogue so that it can be displayed on a conventional television. DTT does not require a satellite dish or cable connection.