You don't need to sign up to anything to watch Freeview. In fact, you might already have it, as it's installed in most TVs.
If you just want to watch the usual terrestrial channels and aren't bothered about any on-demand or catch-up content, you're sorted already.
Catch-up and on-demand content
If you want to enjoy catch-up and on-demand content through Freeview Play, you'll need to sign up to the individual players, including BBC iPlayer, ITV Hub, All 4, My5, UKTV Play and CBS.
You don't need a subscription, just a TV with Freeview Play (available from most leading manufacturers). If your current TV doesn't have Freeview Play, you can easily add it by connecting your set to a Freeview Play recorder.
To enjoy the Freeview mobile app, you just need to download it and sign up to the players provided by the channels – which are BBC iPlayer, ITV Hub, All 4, My5 and UKTV Play.
You'll also need a minimum internet connection of 2Mbps and a TV licence. (Once you've paid it, though, with Freeview you don't need to pay anything else on top).