The simplest way to stream from your PC to your TV
The easiest method depends on what hardware you already own. If your TV is made in the last five years, it almost certainly has built-in wireless streaming — either Miracast (Windows), AirPlay (Apple), or a proprietary system like Roku, Fire TV, or Google TV. If your PC and TV both support the same standard, you can mirror your screen or cast video without any cables or extra devices.
If they don't match, a streaming adapter — a small device that plugs into your TV's HDMI port — costs $25 to $50 and handles the translation. The most common are Google Chromecast, Amazon Fire TV Stick, and Roku Streaming Stick. These work with almost any PC made in the last decade.
For the absolute simplest setup with no wireless headaches, an HDMI cable directly from your PC to your TV works when ready and costs under $10. It has no lag, no pairing, and no software to install — you plug it in and your TV becomes a second monitor.
Key Takeaways
- Most modern TVs have built-in wireless streaming (Miracast, AirPlay, or proprietary systems), so check your TV's manual or settings before buying anything.
- If your PC and TV don't match, a $25–$50 streaming adapter like Chromecast or Fire TV Stick bridges the gap and works with nearly any PC.
- An HDMI cable is the fastest, most reliable option if your TV is within 15 feet of your PC and you don't mind a physical connection.
- Streaming over WiFi works well for video and web content, but online games and fast-paced action may show lag depending on your network speed.
Wireless streaming using your TV's built-in system
Check what your TV supports by looking in its settings menu or the manual. Most Samsung, LG, and Sony TVs made after 2018 support Miracast, which is the Windows standard. Apple TVs and newer iPhones use AirPlay. Roku, Fire TV, and Google TV devices have their own apps and casting buttons.
To use Miracast on Windows 10 or 11, open Settings, go to System > Display, and look for "Connect to a wireless display." Your TV should appear in the list if it's on and Miracast is enabled. Click it, and your screen will mirror within a few seconds. On a Mac, use AirPlay from the menu bar — the process is identical.
The advantage of built-in wireless is that there's nothing to buy and nothing extra to plug in. The disadvantage is that it only works if both devices support the same standard, and the connection can drop if your WiFi is weak or your PC is far from the TV.
Using a streaming adapter for wider compatibility
A streaming adapter is a small device that plugs into your TV's HDMI port and connects to your WiFi. It acts as a receiver for your PC's video signal. Google Chromecast, Amazon Fire TV Stick, and Roku Streaming Stick are the most common, and they cost between $25 and $60.
To use one, plug it into your TV's HDMI port, connect it to your WiFi, and then open the casting app or button on your PC. On Windows, right-click the volume icon in the taskbar and select "Cast to a device." On a Mac, use AirPlay if the adapter supports it, or use the adapter's own app. The video will appear on your TV within a few seconds.
Streaming adapters work with almost any PC and are more reliable than relying on your TV's built-in system. They also let you cast from your phone or tablet to the same TV, which is useful if multiple people in your household want to share the screen. The trade-off is that you need to plug in an extra device and keep it powered.
Direct HDMI connection for the most reliable setup
An HDMI cable is the oldest and most straightforward method. Plug one end into your PC's HDMI port (or USB-C to HDMI adapter if your PC doesn't have HDMI) and the other into any HDMI port on your TV. Your TV will recognize the connection when ready, and you can choose to mirror your screen or extend it as a second display.
HDMI has no lag, no pairing, no WiFi dependency, and no software to install. It works with every PC and every TV made in the last 15 years. The only limitation is distance — HDMI cables work reliably up to about 15 feet, and longer runs may lose signal quality.
If your PC is in a different room or far from your TV, HDMI isn't practical. But if your setup is close, it's the fastest and most stable option. A good HDMI 2.1 cable costs $8 to $15 and will last for years.
Streaming video apps and web content
If you want to watch Netflix, YouTube, or other streaming services on your TV, you don't need to stream from your PC at all — most TVs have these apps built in, or you can install them on a cheap streaming adapter. This is simpler and uses less bandwidth than casting from your PC.
However, if you want to watch something on your PC that isn't available as a TV app — a video file you downloaded, a browser window, or a specific website — casting or HDMI is the way to go. Wireless casting works well for video, but it may stutter if your WiFi is congested or slow. If you're watching something that requires smooth playback, HDMI is more reliable.
Gaming and fast-action content over wireless
Wireless streaming introduces a small delay, usually between 50 and 200 milliseconds, depending on your WiFi quality and the adapter you use. For watching movies or browsing, you won't notice this. For gaming or watching fast-action sports, the lag can be noticeable.
If you play games on your PC and want to see them on your TV, HDMI is the better choice because it has almost no lag. If you must use wireless, make sure your PC and TV are close to your router, and use the 5 GHz WiFi band if available — it's faster than 2.4 GHz, though it doesn't travel as far.
Troubleshooting common streaming problems
If your PC and TV won't connect, first check that both are on the same WiFi network and that your TV's casting feature is turned on. Restart both devices and try again. If you're using a streaming adapter, make sure it's plugged in and has power.
If the connection keeps dropping, move your PC or TV closer to your router, or switch to the 5 GHz WiFi band if available. If you're using HDMI and the picture is black, try unplugging and replugging the cable, or check that your TV is set to the correct HDMI input. If the picture is there but the sound isn't, go into your TV's audio settings and make sure it's set to receive sound from HDMI.
If wireless casting is very slow or laggy, check whether other devices are using your WiFi — streaming video, downloads, or online games on other devices will slow down your casting. Pause or disconnect them temporarily to see if that helps.
Frequently Asked Questions
Do I need a special cable or adapter if my PC doesn't have HDMI?
Most modern PCs have HDMI, but if yours doesn't, you can use a USB-C to HDMI adapter (around $15) or a DisplayPort to HDMI adapter. Older PCs with VGA or DVI ports need adapters too, but they're inexpensive and widely available. Check your PC's ports before you buy.
Can I stream from my PC to multiple TVs at once?
Wireless casting usually works with one TV at a time. If you want to send the same video to multiple TVs, you would need multiple adapters or cables. Some streaming services let you watch on different devices simultaneously, but that's a service feature, not a PC streaming feature.
Will streaming from my PC drain its battery?
Wireless streaming uses more battery than normal use because your PC is constantly sending video over WiFi. If you're streaming for more than an hour, plug your PC in. HDMI uses slightly less power because the connection is direct, but it's still a good idea to plug in for long sessions.
What's the difference between mirroring and casting?
Mirroring sends your entire screen to the TV — whatever you see on your PC monitor also appears on the TV. Casting usually sends just a single window or app. Mirroring is simpler for presentations or watching something full-screen; casting is better if you want to keep working on your PC while video plays on the TV.
Can I use my TV as a second monitor instead of just mirroring?
Yes. With HDMI, right-click your desktop and select "Display settings," then choose "Extend" instead of "Duplicate." Your TV becomes a second monitor where you can drag windows. Wireless casting usually only mirrors, not extends, so HDMI is better if you want this feature.