Modern technology allows you to completely eliminate unnecessary wires in your living room, transforming ordinary movie watching into a true cinema experience. Streaming content from your personal computer to your big TV screen is one of the most popular features available to owners. Smart TVThis eliminates the need to copy files to a flash drive or use bulky HDMI cables that often get tangled underfoot.
There are several proven methods for wireless image transmission, each with its own features and advantages. The choice of a specific method depends on your computer's operating system, TV model, and the type of content being transmitted. In this article, we'll cover all the current options in detail so you can enjoy your favorite movies and games in high quality.
Before setting up, make sure both devices are connected to the same wireless network. This is a fundamental requirement for most data transfer protocols. If your router supports dual-band mode, it's recommended to use the 5 GHz frequency for more stable transmission of heavy video streams.
Using the built-in Cast feature in Windows
Windows 10 and 11 operating systems have powerful built-in screen projection tools that are based on the standard MiracastThis technology allows you to mirror your PC monitor's image to your TV with virtually no lag, making it ideal not only for watching videos but also for presentations or displaying photos.
No third-party software is required to start the process. Simply press a key combination. Win + K on your keyboard, and the "Connection" panel will appear on the right. Your TV should appear in the list of available devices. If the device isn't found, check that Screen Mirroring is enabled in your TV's settings.
- 📺 Press the "Source" or "Input" button on the remote and select the mode Screen Share or Miracast.
- 💻 On your computer, open the Action Center and select "Project."
- 🔗 Select your TV from the list and wait for the connection.
It's worth noting that image quality directly depends on the power of your Wi-Fi router and your distance from it. This method creates a direct connection, which can be susceptible to interference.
It's important to understand the difference between operating modes. You can duplicate your screen, extend your desktop, or use the TV exclusively as a second monitor. Switching between these modes is done through the menu. Projection in the system settings.
⚠️ Please note: When using Miracast in screen mirroring mode, your mouse cursor and system sounds will also be broadcast to your TV, which may distract you from watching your movie.
Broadcasting via Google Chrome browser
If built-in Windows tools don't work or your TV doesn't support Miracast, a popular browser will come to the rescue. Google ChromeIt is equipped with a Cast function that allows you to broadcast individual tabs or the entire desktop to devices that support the protocol. Chromecast.
This method is universal and works on most modern Smart TVs, as well as Android TV devices. To get started, open your browser, click the three dots in the upper right corner, and select "Cast." The system will automatically search for available devices on your local network.
- 🌐 Open the website with the video or file you want to show.
- 🔘 Click the browser menu and select the "Stream" option.
- 📺 Select the target TV from the drop-down list.
A unique feature of this method is the ability to broadcast only a specific browser tab, leaving other windows on your computer private. This is convenient if you're working while browsing or want to share content with guests without opening any extra windows.
Why might video lag when streaming through Chrome?
If the video is choppy or poor quality, try closing unnecessary browser tabs. Chrome uses significant CPU resources to encode the video stream in real time. Also, make sure your browser is updated to the latest version, as older versions may have codec issues.
Transmission quality through Chromecast It's often higher than Miracast, especially when streaming video from the internet. The browser optimizes the stream, reducing the load on the local network.
Setting up a DLNA server to play files
Protocol DLNA (Digital Living Network Alliance) is fundamentally different from screen mirroring methods. Instead of transmitting a real-time video stream, the computer acts as a media server, providing the TV with access to the file system. The TV decodes the video itself, ensuring maximum picture quality and zero lag.
In the Windows operating system, this feature is implemented through "Streaming Media Settings." You don't need to install complex servers like Plex or Kodi, although they offer more advanced functionality. You can quickly share a folder of movies using standard tools.
To activate, go to Settings → Network & Internet → Status → Streaming Media Settings. Here, you need to enable streaming and select your TV from the list of allowed devices.
- 📂 Create a separate folder for media files to avoid sharing the entire drive.
- ⚙️ In the settings, specify which file types (videos, photos, music) will be available.
- 📺 On your TV, launch the Media Player, Gallery, or similar app.
The main advantage of DLNA is that it doesn't rely on your PC's performance once playback starts. You can turn off your computer monitor or launch a heavy game, and the movie will play smoothly on your TV.
| Characteristic | Miracast / WiDi | DLNA | Chromecast |
|---|---|---|---|
| Transmission type | Screen mirroring | Access to files | Broadcast a tab/stream |
| Download to PC | High (coding) | Minimum | Average |
| Video quality | Depends on the signal | Original (no loss) | Adaptive |
| Control | From a computer | From the TV remote control | From a computer/phone |
⚠️ Please note: The DLNA protocol does not support streaming interactive content. You won't be able to play games or share your desktop; only static files and media will be supported.
Using third-party software
When standard tools fail or advanced features are required, specialized programs come to the rescue. The leader in this niche is Home Media Server, which turns your computer into a powerful media library with automatic downloading of covers and descriptions.
Another popular option is the program TeamViewer or AnyDesk, if you need full remote access, although they are less suitable for watching video due to image compression. For home theater, solutions like Serviio or Universal Media Server.
Installing such programs usually takes a few minutes. After installation, you need to scan your computer for media files and add them to your library. The TV will automatically detect the new server on the network.
- 💿 Download the program distribution from the developer's official website.
- 🛠️ Install the software by following the setup wizard instructions.
- 🎬 Add paths to movie folders to the app library.
Some programs allow you to stream online videos that can't be played using standard TV tools. This is especially true for websites that don't have their own Smart TV app.
☑️ Checking the readiness for media server setup
It's important to configure Windows Firewall so it doesn't block incoming connections for the selected program. Often, when you first launch the program, the system asks for permission to access the network—you should select "Private Network" or "Home Network."
Solving common connection problems
Even with proper setup, users may encounter difficulties. The most common issue is the TV not "recognizing" the computer. In 90% of cases, this is due to the devices being connected to different networks (for example, one to the guest network, the other to the main network) or to different router frequency bands, with client isolation.
The second common cause is antivirus or firewall settings. They may perceive the streaming attempt as a security threat and block the connection. An exception for the media service should be created.
If the image is transmitted but there are artifacts or audio lag, try lowering the signal resolution or moving the router closer to the receiver. Restarting your network equipment may also help.
⚠️ Please note: TV interfaces and operating system versions are constantly updated. The location of menu items may differ from what is described. If you cannot find the option you need, please refer to the official documentation for your model.
Comparison of methods and final recommendations
The best method depends on your goals. For a quick photo display or presentation, MiracastFor comfortable viewing of downloaded movies in high bitrate, it is indispensable DLNAAnd if you need to show content from the Internet where there is no direct link to the file, use Google Chrome.
Don't forget about physical limitations either. Older 802.11n routers may struggle to handle large 4K movies, and even the best software won't save the day. In such cases, consider upgrading to a modern router or using a wired connection for your desktop PC.
Modern TVs are becoming smarter and many of them already support the technology AirPlay 2, making it easy to stream content not only from a PC but also from Apple devices. The ecosystem is becoming unified, making cables a thing of the past.
Why can't the TV find the computer on the network?
Make sure your Windows network profile is set to "Private Network." On public networks, device discovery is disabled by default for security reasons. Also, make sure the Media Server service is running in the Windows services list.
Is it possible to run a PC game on a TV via Wi-Fi?
Technically, this is possible via Miracast, but the input lag will be too high for fast-paced games. For a comfortable gaming experience, we recommend using an HDMI cable or streaming over a local network using Steam Link, if your TV supports it.
Does watching video on a PC affect the picture quality on TV?
When using DLNA, no, since the TV receives the file directly. Using Miracast or Chrome Cast increases the load on the processor and network, which can lead to a drop in FPS in games or sluggish performance when performing heavy computer tasks.