Network TV tuners explained: how to stream your antenna channels around the house

A network TV tuner is a small box that connects to an antenna on one side and your home network on the other. It receives free over-the-air broadcasts and turns them into IP streams that phones, tablets, smart TVs, computers and DVR software can play. In effect, network TV tuners let you build your own legal, local IPTV system from free broadcast TV.

Why use network TV tuners

• Put the antenna where reception is best, in the attic or by a high window, rather than next to the TV.
• Watch on any device on your home network, not just TVs with built-in tuners.
• Record with DVR software or a home media server.
• Share a single antenna between several screens. Most tuners have two or more tuner channels, so several people can watch different channels at once.

Network tuner vs TV's built-in tuner

For a single TV with good reception near the antenna, the built-in tuner is simpler. A network tuner earns its place when you want antenna TV in several rooms, on phones and tablets, or recorded.

How it works

1. The antenna picks up broadcast signals: ATSC in North America, DVB-T/T2 in much of Europe and elsewhere, and other standards in other regions.
2. The tuner demodulates the signal and extracts the channel's video and audio.
3. It sends the stream over Ethernet (sometimes Wi-Fi) to devices that ask for it.
4. Apps on those devices discover the tuner on the network, show a channel list and, with guide data, a program grid.

Because the stream is a broadcast transport stream, often MPEG-2 or H.264 at a fairly high bitrate, a wired connection to the tuner is strongly recommended. Some home-server software can transcode streams to lower bitrates for phones or remote viewing.

What the device actually sends

Most network tuners don't re-encode video. They pass on the broadcast's own stream, usually in the codec and bitrate the broadcaster chose. That has implications:

• Quality is preserved. You see what the broadcaster transmits.
• Bitrates can be high, especially for HD channels using older codecs, so a wired connection to the tuner and good Wi-Fi to viewing devices matter.
• Some devices may struggle with formats they can't decode in hardware, such as older broadcast codecs on certain phones or browsers. Apps and servers can solve this by transcoding.

Discovery and apps

On a home network, apps typically find tuners automatically. If an app can't find yours:

• Make sure the phone or TV is on the same network, not a guest network
• Check that the tuner is powered on and has a network link light
• Restart the tuner and your router
• Check that "client isolation" or similar features aren't separating devices on your Wi-Fi

What to look for

• Broadcast standard: make sure it matches your country (ATSC 1.0, ATSC 3.0, DVB-T2 and so on).
• Number of tuners: this is how many channels can be watched or recorded at the same time.
• App and software support: check that the tuner works with apps on your devices and with the DVR software you plan to use.
• Ethernet port: strongly preferred over Wi-Fi.
• Guide data options: some ecosystems include guide subscriptions, while others rely on your DVR software.

Popular examples include the HDHomeRun line from SiliconDust, along with tuners sold as part of complete DVR systems. We haven't tested specific models. Use these criteria with current manufacturer specifications.

How many tuners do you need?

Count the maximum number of channels you'll want to watch or record at the same time. A household where one person watches the news while a game records on another channel needs at least two tuners. Families who record several series at overlapping times may want three or four. Buying one more tuner than you think you need is usually cheaper than adding a second device later.

Guide data options

A channel list on its own shows only what's on now. For a full program guide, which you need to schedule recordings, you need guide data. Depending on the ecosystem, this comes from:

• The tuner maker's own service, sometimes as a paid subscription
• DVR or media server software, which may include guide data in its own subscription
• Broadcast guide information, which is basic and covers only a short period ahead

Check how guide data works before buying, especially outside the largest markets.

ATSC 3.0 and encryption: a caution for US buyers

In the US, stations are gradually adding ATSC 3.0 (NextGen TV) broadcasts. Some of these are encrypted under an industry content-security system, which means:

• Encrypted channels may only play on certified devices and apps.
• Some network-tuner setups and third-party DVR software have had trouble with encrypted channels.

The FCC has asked for public comment on DRM as part of its NextGen TV proposal. See our coverage of the FCC's NextGen TV proposal. If you buy an ATSC 3.0 tuner, check the manufacturer's current statement on encrypted channel support with the apps you intend to use.

Troubleshooting reception with a network tuner

Because the tuner sits between the antenna and your devices, it's important to tell apart reception problems from network problems:

• Pixelation on every device while watching the same channel points to reception. Adjust the antenna, as described in our over-the-air TV guide.
• Stutter on one device only while others play the same channel smoothly points to that device's network connection. See Wi-Fi vs Ethernet.
• Channels missing after a scan usually means a reception problem or a station changing frequency. Rescan after adjusting the antenna.

Many tuners report signal strength and quality for each channel in their setup app. Use these readings while adjusting the antenna. They are more reliable than watching the picture alone.

Getting started

1. Use the FCC's DTV reception maps (US) or your national broadcaster's coverage checker to see which channels you should receive.
2. Choose and position an antenna. Our over-the-air TV guide covers antenna types.
3. Connect the antenna to the tuner, and the tuner to your router by Ethernet.
4. Run the tuner's setup app to scan for channels.
5. Add a DVR or media server if you want recordings. See DVR options for live TV.

Questions people ask

Can I watch antenna TV away from home with a network tuner?

Some tuner apps and media servers support viewing outside the home, sometimes as a paid feature. Your home upload speed limits the quality you can stream remotely. Check local rules and the software's terms, as some restrict out-of-home viewing to the local market.

Do I still need a TV with a tuner?

No. With a network tuner, any compatible app on a smart TV, streaming device, phone or computer can show antenna channels.

Can several people watch different channels at once?

Yes, up to the number of tuners in the device. Recording a programme also uses a tuner while it records.

Does a network tuner use a lot of bandwidth on my home network?

Each stream uses roughly the broadcast's bitrate, which for HD channels is modest compared with home network capacity. Several simultaneous streams over weak Wi-Fi can cause problems, so wire the tuner and the main TV where possible.

Can I use it with other countries' broadcasts?

Only with broadcasts you can receive at your location, and only if the tuner supports that country's broadcast standard.

Setup checklist

• Reception map checked and antenna chosen
• Antenna installed and pointed at the main transmitters
• Tuner connected to the router by Ethernet
• Channel scan completed, signal quality checked
• Guide data configured
• Apps installed on each TV and phone
• Recording software set up, if needed. See Jellyfin vs Plex vs Emby

Key takeaways

• A network tuner turns free antenna TV into streams on your home network.
• It lets you place the antenna where reception is best and watch on many devices.
• Wire the tuner to the router, and check the number of tuners you need.
• Guide data and DVR software add recording and a full programme guide.
• In the US, check ATSC 3.0 encryption support before buying a NextGen TV tuner.

How we wrote this guide

This explainer is based on manufacturers' published information, broadcast standards documentation and regulators' consumer guidance. We have not lab-tested specific tuner models, and we do not recommend individual products here because line-ups and firmware change often. Features such as ATSC 3.0 encryption support are developing quickly, so check the manufacturer's current documentation and recent independent reviews before buying. We will update this article as the situation changes.

Is a network tuner right for you?

A network tuner suits households that already watch antenna TV and want more flexibility: several screens, recordings or better antenna placement. It also suits people who enjoy setting up home technology. If you watch broadcast TV only occasionally on one television, the TV's built-in tuner remains the simplest option.

Sources and further reading

• SiliconDust HDHomeRun
• FCC DTV reception maps
• ATSC: NextGen TV