What "connecting two TVs" actually means

When people ask how to connect two TVs together, they usually mean one of three things: sending the same picture to both screens at once, controlling both from one remote, or linking them so they work as a pair in your home setup. The method you choose depends on what you want them to do.

The most common setup is mirroring — sending the same video signal to both TVs from a single source like a streaming device, cable box, or gaming console. This works best when both TVs are in the same room or nearby. The second option is extending your display, which splits content across two screens — useful for presentations or gaming. The third is straightforward having two independent TVs that happen to be on the same home network, so you can control them separately from your phone or a unified remote app.

Key Takeaways

  • Mirroring sends the same picture to both TVs from one source device, and requires either an HDMI splitter, a receiver that supports dual output, or two separate streaming devices.
  • An HDMI splitter is the cheapest option for mirroring but only works if your source device has one HDMI output port.
  • A home receiver or soundbar with multiple HDMI inputs can route one source to both TVs and is often already in your setup.
  • Smart TVs on the same Wi-Fi network can be controlled together through apps like Google Home or Amazon Alexa, even if they are displaying different content.
  • Extending a display across two TVs requires a device that supports this feature — most streaming boxes do not, but some gaming consoles and computers do.

Using an HDMI splitter for the simplest setup

An HDMI splitter is a small box that takes one HDMI cable from your source device and splits it into two (or more) HDMI outputs. You plug your cable box, streaming device, or game console into the splitter's input, then run separate HDMI cables from the splitter to each TV. Both TVs show the exact same picture.

This works well if your source device has only one HDMI output and you want both TVs to display identical content. A basic two-output HDMI splitter costs between $15 and $40. The catch: not all splitters work with all devices. Some older splitters have trouble with 4K video or newer copy-protection standards. Before buying, check the product listing to confirm it supports your source device's resolution and your TVs' capabilities.

One practical limit: HDMI splitters work best when both TVs are relatively close to the source device, because HDMI cables degrade over long distances. If your TVs are more than 30 feet apart, you may need an HDMI extender (a separate device that boosts the signal) in addition to the splitter, which adds cost and complexity.

Running both TVs through a receiver or soundbar

If you already own a home receiver or a soundbar with HDMI inputs, you likely have a simpler option than buying a splitter. Most receivers and many soundbars have multiple HDMI inputs and can send video to two different outputs at once — one to each TV.

The setup works like this: plug your cable box, streaming device, or game console into one of the receiver's HDMI inputs. Then connect HDMI cables from the receiver's two video outputs to each TV. When you play content through the receiver, both TVs display it. You control everything through the receiver's remote or app.

This approach has a real advantage: you are not adding another device to your setup, and the receiver already handles audio routing. Check your receiver's manual or manufacturer website to confirm it supports dual video output — not all models do. Older receivers in particular may only have one HDMI output.

Connecting two TVs through your home network

If you want each TV to show different content but control them both from one place, connect them to the same Wi-Fi network and use a control app. Google Home, Amazon Alexa, and Apple Home all let you manage multiple smart TVs from a single app on your phone.

This setup does not send the same picture to both screens. Instead, each TV streams its own content independently. You might have a news channel on one TV and a movie on the other, but control both from your phone. This is useful if you have TVs in different rooms and want to avoid walking between them to change the volume or input.

To set this up, make sure both TVs are connected to your home Wi-Fi. Then open the control app on your phone, add both TVs to the app, and you can manage them from one place. Most smart TVs made in the last five years support at least one of these platforms. Check your TV's settings menu under "Network" or "Wi-Fi" to confirm it is connected.

Extending your display across two TVs

Extending a display — showing different parts of one image across two screens — is less common in home setups but possible with certain devices. Some gaming consoles and computers support this, but most streaming boxes like Roku or Apple TV do not.

If you have a PlayStation 5 or Xbox Series X, you can extend a game or app across two monitors or TVs if both are connected to the console. Some computers with graphics cards that support dual display output can also do this. The setup requires two HDMI cables from the source device to each TV, and the source device must have two HDMI outputs or you must use a splitter.

Before attempting this, check your device's manual or support page to confirm it supports extended display mode. Most streaming services and apps do not work in extended mode — it is mainly useful for gaming, video editing, or presentations.

Controlling both TVs with a single remote

If you want one physical remote to control both TVs, you have two options: a universal remote that learns both TVs' signals, or a smart home hub that controls them through Wi-Fi.

A universal remote like a Logitech Harmony or a basic programmable remote can be taught to respond to both TVs' infrared signals. You program it once with the codes for each TV, then use buttons on the remote to switch between them or control both at once. These cost between $30 and $150 depending on features. The downside: you need a clear line of sight from the remote to both TVs' infrared receivers, and if the TVs are far apart or in different rooms, this becomes impractical.

A smart home hub like Google Home, Amazon Alexa, or Apple Home works over Wi-Fi, so distance does not matter. You can control both TVs from the hub's app on your phone, or use voice commands if you have a speaker. This is more flexible but requires both TVs to be on your home network and compatible with the hub you choose.

Troubleshooting common connection problems

If you have connected two TVs but one is not showing a picture, start with the basics: confirm both HDMI cables are fully inserted, both TVs are powered on, and both are set to the correct input. Use your TV remote to navigate to the input or source menu and select the HDMI port you plugged the cable into.

If you are using a splitter and one TV works but the other does not, try swapping the HDMI cables between the two TVs. If the problem moves with the cable, the splitter output is faulty. If the problem stays with the same TV, that TV's HDMI port may be damaged. Test the TV's HDMI port with a different cable or device to confirm.

If both TVs are connected but showing different content when you want them to show the same thing, you may have accidentally set them to different inputs or sources. Check each TV's input menu to make sure both are receiving signal from the same device. If you are using a receiver, confirm the receiver is set to output to both TVs — check the receiver's settings menu under "Video Output" or "HDMI Setup".

For network-based control issues, restart both TVs and your Wi-Fi router. Then re-add the TVs to your control app. If one TV still will not appear in the app, check that TV's Wi-Fi connection by going to Settings > Network > Wi-Fi Status on the TV itself.

Frequently Asked Questions

Can I use one cable box or streaming device to send different channels to two TVs?

No. A single cable box or streaming device can only output one signal at a time. To show different content on two TVs, you need either two separate devices (two cable boxes, two streaming sticks) or a setup where each TV has its own streaming app and Wi-Fi connection. If you want the same channel on both TVs, a splitter or receiver will work.

Do both TVs have to be the same brand or model?

No. An HDMI splitter or receiver does not care what brand the TVs are — it just sends video signals. For network-based control, both TVs need to support the same platform (Google Home, Alexa, or Apple Home), but they can be different brands as long as they both work with that platform.

Will connecting two TVs together affect picture quality?

An HDMI splitter or receiver should not reduce picture quality if it is rated for your resolution (1080p, 4K, etc.). However, very long HDMI cable runs — over 50 feet — can degrade the signal. If you need to run cables that far, use an HDMI extender or switch to a network-based setup.

What if my TVs are in different rooms?

HDMI splitters and receivers only work well for TVs in the same room or nearby. For TVs in different rooms, use a network-based setup: connect both to Wi-Fi and control them through an app or smart home hub. Each TV can show different content, or you can use a streaming service that supports multi-room audio and video.

Can I connect more than two TVs?

Yes. HDMI splitters come in 4-output and 8-output versions, so you can connect more than two TVs to one source. A receiver can also route to multiple TVs if it has enough HDMI outputs. For network control, you can add as many smart TVs as you want to the same app — there is no practical limit.