How to Connect Your PC to a TV

Yes, you can connect a PC to a TV using a cable or wireless connection

Your PC and TV can work together. You can send video and audio from your computer to your television screen, which is useful for presentations, watching movies on a larger display, or extending your workspace. The connection method depends on what ports your PC and TV have, how far apart they are, and whether you want a wired or wireless setup.

Most modern PCs and TVs support at least one common connection type. If your equipment is older, you may need an adapter. Once connected, your TV becomes a second display or a mirror of your PC screen.

Key Takeaways

HDMI is the most common wired connection and works with nearly all modern PCs and TVs.
DisplayPort, USB-C, and VGA are alternative wired options depending on what ports your devices have.
Wireless options like Miracast, AirPlay, and Chromecast work without cables but may have slight lag.
After connecting, you may need to adjust display settings in Windows or your operating system to extend or mirror the screen.
If your PC or TV lacks the right port, adapters are inexpensive and widely available.

HDMI: The standard wired connection

HDMI (High-Definition Multimedia Interface) is the most straightforward way to connect a PC to a TV. Nearly every TV made in the last 15 years has at least one HDMI port, and most modern PCs have an HDMI output port. An HDMI cable carries both video and audio, so you need only one cable.

Plug one end of the HDMI cable into your PC's HDMI port and the other end into any available HDMI port on your TV. Turn on the TV and select the correct HDMI input using your remote control. Your PC should detect the TV automatically. If it does not, right-click on your desktop, select "Display settings," and look for an option to detect or connect a display.

HDMI cables are inexpensive and come in different lengths. Standard HDMI works reliably up to about 50 feet, though longer cables may occasionally have signal issues. If you need a very long run, a powered HDMI repeater or an HDMI extender can help.

DisplayPort and USB-C for newer PCs

Newer PCs, especially laptops, often use DisplayPort or USB-C ports instead of HDMI. DisplayPort is common on desktop graphics cards and some laptops. USB-C is increasingly standard on modern laptops and can carry video, audio, and power all at once.

If your PC has DisplayPort, you can buy a DisplayPort-to-HDMI cable or adapter and connect it to your TV's HDMI port. If your PC has USB-C with video support (not all USB-C ports do), a USB-C-to-HDMI adapter works the same way. These adapters are inexpensive and widely available online and in electronics stores.

Check your PC's manual or manufacturer website to confirm whether your USB-C port supports video output. Some USB-C ports are for charging or data only and will not transmit video.

VGA and older connection types

If you have an older PC or TV, you may encounter a VGA (Video Graphics Array) port, which looks like a blue connector with three rows of small holes. VGA carries video only, so you will need a separate audio cable if you want sound. VGA cables and adapters are still available but becoming harder to find.

Other older standards include DVI (Digital Visual Interface) and component video. If your equipment uses these, adapters to HDMI exist but are less common. Before buying an adapter for very old equipment, confirm that both your PC and TV actually support the connection type you are considering.

Wireless options: Miracast, AirPlay, and Chromecast

If you want to avoid cables, wireless connections are an option. Miracast is built into Windows 10 and later. To use it, make sure your TV supports Miracast (most modern smart TVs do). On your PC, press the Windows key and type "Connect," then select "Connect to a wireless display." Your TV should appear in the list. Select it and confirm the connection on your TV.

AirPlay is Apple's wireless standard. If you have a Mac and an Apple TV, AirPlay is built in. For other TV brands, you may need an AirPlay-compatible adapter. Chromecast is Google's option and works with many TV brands. If your TV has Chromecast built in, you can cast from your PC's Chrome browser or from certain applications.

Wireless connections are convenient but may introduce a slight delay (usually under a second) and depend on your Wi-Fi network strength. For gaming or video editing, a wired connection is more reliable. For presentations or watching videos, wireless is often sufficient.

Adjusting display settings after you connect

Once your TV is connected, your PC may treat it as a second monitor or mirror your main display. To change this, right-click on your desktop and select "Display settings" (on Windows). You will see options to extend your display, duplicate it, or use only the TV.

If the TV shows a distorted or cut-off image, look for a "resolution" setting in Display settings and try a lower resolution that your TV supports. Most modern TVs work best at 1920 × 1080 (1080p) or higher. If text appears too small or too large, you can adjust the scaling in the same menu.

On a Mac, go to System Preferences, then Displays, to adjust how the TV is used. You can choose to mirror the display or extend it to create more workspace.

Troubleshooting common connection problems

If your TV does not detect the PC after you plug in the cable, try these steps: First, make sure you selected the correct HDMI input on your TV using the remote. Second, unplug the cable from both ends and plug it back in firmly. Third, restart your PC. If the TV still does not detect it, the cable may be faulty—try a different HDMI cable if you have one.

If the connection works but the image looks wrong, check the resolution in Display settings. If you see no picture but hear audio, your PC may be sending video to a different output. If you see a picture but no sound, make sure your TV volume is not muted and that audio is not being routed to a different device in your PC's sound settings.

For wireless connections that keep dropping, move your PC and TV closer together or reduce the distance from your Wi-Fi router. Wireless interference from other devices can also cause problems—try moving away from microwaves, cordless phones, or other wireless equipment.

When to call a professional

Most PC-to-TV connections are straightforward enough to handle yourself. However, if you are running cables through walls, installing a permanent setup, or dealing with very old equipment that requires multiple adapters, a home technology installer can save time and frustration.

If your PC or TV has a hardware problem—a broken port, for example—a repair technician can assess whether fixing it is worth the cost. For straightforward connection issues, the troubleshooting steps above will resolve most problems without professional help.

Frequently Asked Questions

Do I need to buy a special cable or adapter?

Only if your PC and TV do not have matching ports. If both have HDMI, you need only a standard HDMI cable, which costs a few dollars. If one has HDMI and the other has DisplayPort or USB-C, a straightforward adapter is inexpensive and widely available.

Can I use my TV as a monitor all the time?

Yes, but TVs are not ideal for this. They have lower pixel density than monitors, so text can look blurry at normal viewing distances. If you sit close to the screen, a monitor is better. For casual use or watching videos, a TV works fine.

Will connecting my PC to my TV slow down my computer?

No. The connection itself does not affect your PC's performance. However, running a second display uses a small amount of graphics processing power, which may slightly reduce frame rates in demanding games or video editing.

What if my TV does not have HDMI?

Older TVs may have VGA, component video, or composite inputs instead. You can buy an adapter from HDMI to any of these, but adapters for very old standards are becoming rare. Check what ports your TV has before buying an adapter.

Is wireless connection as good as a wired one?

Wireless is convenient but slightly slower and less stable. For presentations, streaming, or casual use, wireless works well. For gaming, video editing, or anything requiring low latency, a wired HDMI connection is more reliable.

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.