Today we are excited to launch a new add-on board for your Raspberry Pi: the Raspberry Pi TV HAT , on sale now at $21.50. The TV HAT connects to the 40-pin GPIO header and to a suitable antenna, allowing your Raspberry Pi to receive DVB-T2 television broadcasts. Watch TV with your Raspberry Pi With the board, you can receive and view television on a Raspberry Pi, or you can use your Pi as a server to stream television over a network to other devices.

Excerpt from:
Introducing the Raspberry Pi TV HAT