How to Connect Your Roku Device to Your TV

The Basic Connection: What You Need and Where to Plug In

Connecting a Roku to your TV takes about five minutes and requires only the device itself, the power cable that comes with it, and an HDMI cable. The Roku plugs into your TV's HDMI port — the same port you would use for a cable box or gaming console — and into a power outlet or USB port for electricity.

Find the HDMI ports on the back or side of your TV. Most TVs have multiple ports labeled HDMI 1, HDMI 2, and so on. It does not matter which one you use, though HDMI 1 or 2 is often the most reliable. Plug one end of the HDMI cable into that port and the other end into the HDMI port on your Roku device. Then plug the Roku's power cable into a nearby outlet or into a USB port on your TV if your TV has one that provides power.

Turn on your TV and use the remote to switch to the HDMI input where you plugged in the Roku. On most remotes, this is an "Input" or "Source" button. You should see the Roku startup screen appear within 10 to 15 seconds.

Key Takeaways

Roku connects to your TV through an HDMI cable, the same type used for other devices like cable boxes or game consoles.
The device needs power from either a wall outlet or your TV's USB port, and this is separate from the HDMI connection.
After plugging in the HDMI cable and power, switch your TV to the correct HDMI input using your TV remote's Source or Input button.
The Roku will walk you through connecting to your Wi-Fi network and signing in during the first startup, which takes about 10 minutes total.

Switching Your TV to the Right HDMI Input

This is the step where most people get stuck. Plugging in the cables is not enough — your TV is probably still showing cable, an antenna feed, or a blank screen because it does not know to display the Roku yet.

Look for a button on your TV remote labeled "Input," "Source," "HDMI," or sometimes just a symbol that looks like a rectangle with an arrow. Press it. A menu will appear showing your TV's available inputs: HDMI 1, HDMI 2, HDMI 3, and possibly others. Select the HDMI port where you plugged in the Roku. If you are not sure which one, try HDMI 1 first. The Roku startup screen should appear within a few seconds.

If you see a black screen or "No Signal," you either plugged the HDMI cable into the wrong port on the TV, selected the wrong input on the remote, or the Roku did not power on. Check that the Roku's power light is on (usually a small light on the device itself or on the power cable). If the light is off, make sure the power cable is fully plugged in at both ends.

Setting Up Wi-Fi and Your Roku Account During First Startup

Once you see the Roku startup screen, the device will ask you to choose your language and then connect to your Wi-Fi network. Use the Roku remote to navigate and select your home Wi-Fi network from the list. Enter your Wi-Fi password when prompted — this is the same password you use to connect phones or laptops to your home network.

After Wi-Fi connects, the Roku will ask you to sign in with a Roku account or create one. You can use an email address you already have. This account lets you add channels, save preferences, and use features like voice search on the remote. Creating an account takes about two minutes and is free.

Once you are signed in, the Roku home screen will appear. You are now ready to add channels like Netflix, YouTube, or others. The whole setup process from plugging in the device to reaching the home screen usually takes 10 to 15 minutes.

Troubleshooting: When the TV Does Not Show the Roku Screen

If you plugged everything in but your TV still shows cable or a blank screen, start with the simplest checks. Make sure the HDMI cable is pushed firmly into both the TV and the Roku — a loose connection is the most common reason the picture does not appear. Check that the Roku's power light is on. If it is not, unplug the power cable, wait 10 seconds, and plug it back in.

Next, confirm you selected the right HDMI input on your TV. Press the Input or Source button on your TV remote again and look at which input is currently selected (it is usually highlighted). If it shows HDMI 1 but you plugged the Roku into HDMI 2, switch to HDMI 2. If you are not sure which port you used, try each HDMI input one at a time until the Roku screen appears.

If you have tried all the HDMI ports and still see no picture, the HDMI cable itself may be damaged. Try a different HDMI cable if you have one available — many people have spare cables from old devices. If a different cable works, the original one is faulty and should be replaced.

Connecting to a TV Without HDMI Ports

Older TVs sometimes have only composite video ports (three colored plugs: red, white, and yellow) instead of HDMI. Most Roku models require HDMI and do not work with composite connections. However, some Roku models come with a composite adapter in the box, or you can purchase one separately.

If your TV has only composite ports, check the contents of your Roku box to see if an adapter is included. If not, you will need to purchase an HDMI-to-composite converter cable online or at an electronics store. These converters are inexpensive but add an extra step to the setup. For a TV this old, you might also consider whether upgrading the TV itself is practical, since composite-only TVs are typically 10 or more years old and may have other limitations.

Using a TV With Built-In Roku

Some newer TVs have Roku built in, so you do not need a separate device. If your TV has Roku built in, you will not plug in an external Roku box. Instead, go to your TV's settings menu, find the network or connectivity section, and connect to Wi-Fi from there. Then sign in with a Roku account. The process is similar to setting up a standalone Roku, but everything happens through your TV's menu system instead of a separate device.

Check your TV's manual or the manufacturer's website to confirm whether your model has built-in Roku. If it does, you do not need to purchase a separate Roku device.

Frequently Asked Questions

Can I use any HDMI cable, or does it have to be a specific type?

Any standard HDMI cable works with Roku. You do not need an expensive or special cable. If you have a spare HDMI cable from another device, it will work fine. The cable just needs to be long enough to reach from your TV to where you want to place the Roku device.

What if my TV does not have an HDMI port?

Most TVs made in the last 15 years have at least one HDMI port. If your TV is older and has only composite ports (the three colored plugs), you will need an HDMI-to-composite converter, which is available online for under $20. Some Roku models include this adapter in the box.

Do I need to plug the Roku into a power outlet, or can it run on batteries?

Roku devices must be plugged into power at all times. They do not have batteries. You can plug the power cable into a wall outlet or into a USB port on your TV if your TV provides USB power. If your TV does not have USB power, use a nearby wall outlet.

Can I move my Roku to a different TV?

Yes. Unplug the HDMI cable and power cable from the first TV, plug them into the second TV, and switch that TV to the correct HDMI input. Your Roku account and channels will still be there. You may need to reconnect to Wi-Fi if the second TV is in a different room or on a different network.

Why does my Roku keep saying "No Signal" even though I plugged it in?

This usually means the HDMI cable is loose, you selected the wrong HDMI input on your TV, or the cable is damaged. Push the HDMI cable firmly into both ends, try a different HDMI input on your TV using the Source button, and if that does not work, try a different HDMI cable. If the Roku's power light is off, make sure the power cable is fully plugged in.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.