Do You Need an Aerial for a Smart TV? What UK Households Should Know
A smart TV streams apps over your internet without an aerial, but live Freeview channels still need one. Here is how to work out which you need.
By IPTV UK Free Editorial3 min read
In this guide
The short answer is that a smart TV does not need an aerial to stream. It does need one to pick up live Freeview channels. Those are two different ways of getting television into your living room, and a smart TV can do both, one, or neither, depending on what you plug into it.
Most of the confusion comes from the word smart. It sounds as though a clever television should be able to do everything on its own, but a TV can only show what reaches it. An aerial brings in a broadcast signal from a transmitter. Your broadband brings in streams from the internet. The television is simply a screen and a pair of receivers.
Two routes into the same screen
Route one is the aerial. A signal comes down the cable into the aerial socket on the back of the TV, and the built in Freeview tuner turns it into channels. No internet needed. This is how most British homes watched television for decades.
Route two is the internet. The TV connects to your router and runs apps such as BBC iPlayer, ITVX, Channel 4, My5, YouTube or Netflix. No aerial needed. Picture quality depends on your connection.
A smart TV supports both. If you never plug in an aerial, the tuner has nothing to tune and the live channel list will be empty or show a scan error. The apps will work fine.
When you do need an aerial
You need one if you want to watch live channels through the TV's own channel list, press a number on the remote and get that channel instantly, or record to a built in recorder. You also need one if your internet is unreliable and you want a backup, because broadcast signals do not care about your broadband.
Some households keep the aerial purely as insurance. A network fault on a Saturday evening is much less annoying when the football is still on through the aerial.
When you can skip it
If everything you watch is on demand or in an app, you can live without an aerial. That includes catching up on programmes, using subscription services, and using an IPTV service through a player app. Many flats and new builds have no useful aerial anyway, and people there stream everything.
Live programmes are still available without an aerial. The broadcaster apps carry live channels, so you can watch BBC One or ITV in real time through iPlayer and ITVX. You will still need a TV licence for that.
Check your TV before you decide
Look at the back or side of the set for a socket labelled aerial or RF. Then open the settings menu and look for a channel scan option. If both are there, your TV has a tuner. If you are shopping, the box or spec sheet will say Freeview HD, DVB T2 or similar.
Be aware that a few recent televisions are sold without a tuner for the broadcast channels. They stream only. If the box says nothing about Freeview or a digital tuner, check before you buy.
What aerial do you need if you want one
A rooftop aerial gives the strongest signal. A loft aerial is cheaper to fit but loses some strength through the roof. An indoor aerial is the weakest option and only works well close to a transmitter. If you are curious how well those perform, we cover it in our guide to indoor TV aerials.
A good installer will measure the signal before and after, and should be able to tell you what you will receive in your postcode.
What a smart TV needs to stream well
Without an aerial, the quality of your broadband matters a great deal. As a guide, plan on around 15 Mbps for each HD stream and 25 Mbps for each 4K stream, with more if several people are online. Our speed calculator adds it up for your household.
If the TV is far from the router, a network cable will do more for you than any amount of fiddling with settings.
A quick way to decide
Use our aerial checker. It asks three questions and gives a plain answer. If you decide to go the streaming route and want to test IPTV on your own connection first, there is a free 24 hour trial that takes no card details.
Frequently asked questions
Can I watch live TV on a smart TV without an aerial?
Yes, through broadcaster apps that carry live channels. You still need a TV licence, and your broadband needs to be steady.
Why does my smart TV say no signal?
It is looking for an aerial signal on the tuner input. Switch to the HDMI input for your stick or box, or open an app, and the message disappears.
Is a smart TV better than a normal TV with a stick?
Not necessarily. A stick or box can be faster and easier to update than the software built into a budget smart TV, and you can replace it cheaply when it ages.