How to Connect Your PC to a TV in 5 Steps

The fastest way: use an HDMI cable

The simplest connection is an HDMI cable run directly from your PC to your TV. HDMI carries both picture and sound in one cable, so you plug one end into your PC's HDMI port and the other into any HDMI port on your TV. Turn on the TV, switch it to the correct HDMI input (usually labeled HDMI 1, HDMI 2, and so on), and your PC screen appears on the TV within seconds.

Most modern PCs have at least one HDMI port on the back or side of the tower, or built into the laptop. If your PC is older or has no HDMI port, you may need an adapter — USB-C to HDMI, DisplayPort to HDMI, or VGA to HDMI, depending on what ports your PC actually has. These adapters cost between $10 and $40 and work reliably.

HDMI cables themselves are inexpensive and come in different lengths. A 6-foot cable costs around $5 to $10; longer cables (25 feet or more) run $15 to $30. Buy from any electronics store or online retailer — the cable quality does not vary much between brands at standard lengths.

Key Takeaways

HDMI is the fastest and most reliable method because it carries picture and sound together and requires only one cable.
If your PC lacks an HDMI port, you can use an adapter that matches your PC's actual port (USB-C, DisplayPort, or VGA) to HDMI.
After plugging in the cable, switch your TV to the correct HDMI input using the remote — the input number matches the HDMI port you used.
Wireless connections like Miracast or Chromecast work without cables but depend on your TV model and PC hardware, and can be slower or less stable than HDMI.
If the TV shows no picture after connecting, restart both devices and check that the TV is set to the right input channel.

Switching your TV to the correct input

After you plug in the HDMI cable, your TV will not automatically show your PC. You must tell the TV which input to display. Pick up your TV remote and look for a button labeled "Input," "Source," or "HDMI." Press it and a menu appears showing all available inputs — HDMI 1, HDMI 2, HDMI 3, and so on.

Select the HDMI port number that matches where you plugged the cable in. If you are unsure which port you used, try each one until your PC screen appears. Once you select the right input, the TV locks onto it and you see your desktop.

Some TVs remember the last input you used, so the next time you connect the same cable, the TV may switch to it automatically. Others require you to select the input every time. Check your TV manual if you want to set a default input.

Adjusting resolution and display settings on your PC

Once the TV shows your PC screen, the picture may look stretched, blurry, or too small. This happens because your PC and TV may not agree on the best resolution. You can fix this in Windows by right-clicking your desktop, selecting "Display settings," and looking at the "Resolution" dropdown.

Windows usually detects the TV and suggests the best resolution automatically. If the picture still looks wrong, try changing the resolution to match your TV's native resolution — most modern TVs are 1920 × 1080 (called 1080p) or 3840 × 2160 (called 4K). Lower resolutions like 1280 × 720 will look blurry on a large TV.

You can also adjust the scaling and text size in the same Display settings menu if icons or text appear too small to read from your couch. Increasing the scaling to 125% or 150% makes everything larger without changing the resolution.

Using wireless connections if you prefer no cables

If running a cable across your room is not practical, you can connect wirelessly using Miracast (built into Windows 10 and later) or Chromecast (if your TV has a Chromecast device or built-in Chromecast support). Both methods send your PC screen to the TV over Wi-Fi without a physical cable.

To use Miracast on Windows, press the Windows key + K to open the "Connect" menu, then select your TV from the list of available devices. The first connection takes 10 to 30 seconds; after that, reconnecting is faster. Miracast works best when your PC and TV are on the same Wi-Fi network and within 30 feet of each other.

Chromecast requires a Chromecast device plugged into your TV's HDMI port, or a TV with built-in Chromecast. You read the Google Home app on your PC, sign in with your Google account, and cast your screen from there. Chromecast is more reliable than Miracast for most people, but it requires the extra hardware or a compatible TV.

Wireless connections are convenient but slower and less stable than HDMI. If you are gaming, watching video, or doing anything that demands low latency, HDMI is the better choice.

Troubleshooting when the TV shows no picture

If you plug in the HDMI cable and the TV stays blank, start with the simplest fixes. First, restart both your PC and TV — turn them off completely, wait 10 seconds, and turn them back on. This clears temporary connection errors that happen often.

Next, check that you selected the correct HDMI input on the TV remote. If you are not sure which input you plugged into, try each HDMI port one at a time. Also verify that the cable is pushed firmly into both the PC and the TV — a loose connection looks like no connection.

If the TV still shows nothing, try a different HDMI cable if you have one available. Cables can fail, especially if they are old or bent sharply. If a different cable works, the first one is bad and should be replaced.

On your PC, right-click the desktop and open Display settings. Look for a button that says "Detect" or "Identify" — this forces Windows to search for connected displays. If Windows finds the TV but does not show it on screen, try unplugging the cable for 30 seconds and plugging it back in.

Connecting older PCs without HDMI

If your PC has a VGA port (a blue connector with three rows of small holes) instead of HDMI, you can use a VGA-to-HDMI adapter. Plug the VGA cable into your PC, connect it to the adapter, and run an HDMI cable from the adapter to the TV. VGA adapters cost $15 to $30 and work reliably, though VGA does not carry sound — you may need to connect audio separately using a 3.5mm cable from your PC's headphone jack to the TV's audio input.

If your PC has a DisplayPort (a smaller rectangular port, often on newer laptops), use a DisplayPort-to-HDMI adapter instead. These are similar in price and work the same way. USB-C ports on very new laptops can also output video — check your laptop manual to confirm, then use a USB-C-to-HDMI adapter.

Adapters are a one-time purchase and last for years. Keep the adapter with your cables so it is ready when you need it.

Frequently Asked Questions

Can I use my TV as a second monitor while my PC monitor stays on?

Yes. In Display settings, you can choose to extend your display (the TV becomes a second screen) or duplicate it (both show the same thing). Select "Extend" if you want to drag windows between your PC monitor and TV, or "Duplicate" if you want both to show identical content.

Why is my TV showing my PC screen but the picture is cut off at the edges?

This is called overscan. Your TV is zooming in slightly and cutting off the edges of the image. In your TV's settings menu, look for "Picture," "Display," or "Overscan" options and turn overscan off or reduce it. The exact menu location varies by TV brand.

Does HDMI cable length affect picture quality?

No, not at standard lengths under 50 feet. HDMI is digital, so either the signal arrives intact or it does not. A 6-foot cable and a 25-foot cable produce identical picture quality. Very long cables (over 50 feet) may need active repeaters, but this is rare for home use.

What if my TV has no HDMI ports?

Older TVs with only composite (red, white, yellow) or component (red, green, blue) inputs can work with your PC using an HDMI-to-composite or HDMI-to-component adapter. These adapters cost $20 to $40 but picture quality is lower than HDMI. If your TV is very old, consider whether upgrading to a modern TV makes sense.

Can I connect my PC to multiple TVs at once?

Yes, if your PC has multiple HDMI ports or you use adapters for other ports. In Display settings, you can extend your display across all connected TVs. However, most PCs have only one HDMI port, so you would need adapters for additional connections.

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.