How to Connect Your PC to a TV

The simplest way to connect your PC to a TV

The easiest connection is an HDMI cable running directly from your PC to your TV. HDMI carries both picture and sound in one cable, works with almost every modern TV and computer, and costs between $10 and $30. Plug one end into the HDMI port on the back or side of your PC, plug the other into any HDMI port on your TV, then switch your TV to that HDMI input using the remote. Your PC should detect the TV within a few seconds.

If your PC or TV lacks an HDMI port, you have other options — but HDMI is the path that requires the fewest steps and the fewest adapters. If you have HDMI available on both devices, start there.

After you plug in the cable, your PC may show the display on both the monitor and the TV at once, or only on the TV. You can change this behavior later using your display settings. For now, just confirm that you see a picture on the TV screen.

Key Takeaways

HDMI is the standard connection for PCs and TVs — one cable carries picture and sound, and most devices made in the last ten years have an HDMI port.
If your PC or TV lacks HDMI, you can use DisplayPort, USB-C, or older standards like VGA or DVI, but each requires a different adapter.
After connecting the cable, switch your TV to the correct HDMI input using the remote, then check your PC's display settings to choose whether to show the picture on both screens or the TV only.
Wireless connections like Miracast or AirPlay work without cables but require both devices to support the same standard and may have slight delays.

Finding the right port on your PC

Look at the back and sides of your PC tower or laptop for a port labeled HDMI. It is a flat rectangular port about the size of a USB port but wider. Most desktop PCs have at least one HDMI port on the graphics card or motherboard. Laptops almost always have one, though some thin models use USB-C instead.

If you do not see HDMI, look for DisplayPort, which is smaller and more square-shaped than HDMI. DisplayPort works the same way as HDMI for connecting to a TV, but you will need a DisplayPort-to-HDMI adapter (around $15). Some newer laptops use USB-C for video output — check your PC manual or look for a port labeled "Thunderbolt 3" or "USB-C with video support".

Older PCs may have VGA (a port with three rows of small holes) or DVI (a flat port with two rows of pins). Both work with TVs, but you will need an adapter. VGA-to-HDMI adapters cost $10 to $20 and are widely available. DVI adapters are less common but still sold online.

Finding the right port on your TV

Look at the back and sides of your TV for ports labeled HDMI. Most TVs made after 2010 have at least two HDMI ports, and many have three or four. They are all identical and work the same way — it does not matter which one you use.

If your TV is very old and has no HDMI ports, you can still connect a PC using an adapter. A PC with HDMI can connect to an older TV with composite video (three colored ports: red, white, and yellow) using an HDMI-to-composite adapter, though the picture quality will be lower. These adapters cost $15 to $30.

Write down which HDMI port you use — HDMI 1, HDMI 2, or HDMI 3. You will need this number to switch your TV to the correct input after you plug in the cable.

Switching your TV to the correct input

After you plug the HDMI cable in, 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. A menu will appear showing all the inputs your TV has — you will see options like HDMI 1, HDMI 2, HDMI 3, and possibly others like Cable or Antenna.

Select the HDMI port you plugged the cable into. Your TV screen should now show your PC desktop. If you see a blue screen or "No Signal", unplug the cable, wait five seconds, and plug it back in. Then try switching inputs again.

If you still see no picture, restart your PC. Some computers do not detect a TV until they boot up with the TV already connected and switched to the correct input.

Adjusting how your PC displays on the TV

Once your TV shows your PC desktop, you can choose whether to mirror your monitor (show the same thing on both screens), extend your display (use the TV as a second screen), or show the picture on the TV only.

On Windows, right-click on the desktop and select Display Settings. Scroll down to the Multiple Displays section. You will see four options: Extend These Displays (use both screens), Duplicate These Displays (mirror), Show Only on 1 (monitor only), or Show Only on 2 (TV only). Choose the one you want. Most people choose Extend to use the TV as extra screen space, or Duplicate to show the same thing on both.

On Mac, open System Preferences, click Displays, then click the Arrangement tab. You can choose to mirror the displays or extend them. Mac calls this "Mirror Displays" and "Arrangement".

Wireless connections without a cable

If you do not want to run a cable, you can connect wirelessly using Miracast (Windows) or AirPlay (Mac). Both send your PC's picture to the TV over WiFi without a physical cable.

For Miracast on Windows, make sure your TV supports it — most TVs made after 2015 do. Right-click the Windows Start button, select Settings, then System, then Display. Scroll down and click Connect to a Wireless Display. Select your TV from the list. Your PC will connect and begin mirroring.

For AirPlay on Mac, click the Control Center icon in the top-right corner, select Screen Mirroring, and choose your TV. Your Mac must be on the same WiFi network as your TV. AirPlay works with Apple TV boxes and with some newer Samsung and LG TVs.

Wireless connections are slower than HDMI and may have a one-second delay when you move your mouse or type. They also drain your PC's battery faster. Use wireless when convenience matters more than speed, such as showing photos or presentations.

Fixing common connection problems

If your TV shows "No Signal" after you plug in the cable and switch inputs, the cable may be loose. Unplug both ends, wait five seconds, and plug them back in firmly. Make sure the cable is fully inserted — it should not move when you tug gently on it.

If the picture appears but is stretched or blurry, your TV may be using the wrong resolution. Right-click the Windows desktop, select Display Settings, and look at the Resolution setting. Try changing it to match your TV's native resolution — most modern TVs are 1920 x 1080. On Mac, open System Preferences, click Displays, and select the resolution marked "Default".

If you hear sound from your monitor but not from your TV, your PC is still sending audio to the monitor. Right-click the speaker icon in your Windows taskbar, select Open Volume Mixer, and change the default playback device to your TV. On Mac, open System Preferences, click Sound, and select your TV from the Output Devices list.

If your TV does not appear in the wireless connection menu, make sure both devices are on the same WiFi network and that your TV supports Miracast or AirPlay. Restart both your PC and TV, then try again.

Frequently Asked Questions

Do I need a special HDMI cable for a TV?

No. Any HDMI cable works with any HDMI port. There is no difference between a $5 cable and a $50 cable for connecting a PC to a TV. Buy the cheapest one you find — the picture quality will be identical.

Can I use an old VGA monitor cable to connect to my TV?

VGA cables carry only picture, not sound, and older TVs rarely have VGA ports. If your TV has a VGA port, you can use a VGA cable, but you will need a separate audio cable (usually a 3.5mm headphone jack) to hear sound. HDMI or an adapter is simpler.

What if my PC and TV are far apart?

HDMI cables work reliably up to about 50 feet, though picture quality may degrade slightly at that distance. For longer distances, use an HDMI extender (around $30) or switch to a wireless connection like Miracast. Wireless is often easier for distances over 30 feet.

Will connecting my PC to my TV damage either device?

No. HDMI and other video connections are designed to be safe. Plug and unplug as needed without worry. The only risk is loose cables causing a poor connection, which just results in no picture — not damage.

Can I use my TV as my main monitor instead of a separate display?

Yes, but TVs are not ideal for this. They have lower pixel density than monitors, so text appears blurry at normal viewing distances. If you sit close to the screen (within 3 feet), a monitor is better. If you sit far away (6 feet or more), a TV works fine for everyday tasks.

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.