Modern technologies allow you to completely eliminate unnecessary wires and bulky external drives when viewing multimedia. Local Wi-Fi network Opens up wide possibilities for transferring large video files from your laptop or desktop PC's hard drive directly to your big TV screen. This not only saves time on copying but also allows you to control the content directly from your keyboard or mouse.
Implementing this task doesn't require complex hardware or specialized programming skills. All that's required is that both devices are on the same network and the software supports streaming standards. Smart TV TV boxes from Samsung, LG, Sony or Android can easily be transformed into powerful media centers that receive signals.
In this guide, we'll cover all the current methods for setting up wireless streaming, from built-in operating system features to specialized servers. You'll learn how to configure file access, eliminate latency, and ensure maximum image quality without compression artifacts.
Technical requirements and equipment preparation
Before you begin setup, you need to ensure your infrastructure is ready to handle high-density video streaming. The basic requirement is that both devices must be connected to one routerIf you are using a guest network or different frequency bands with client isolation, the connection may fail.
Broadcast quality directly depends on the wireless channel's bandwidth. For viewing video in 4K or HDR resolution, it is highly recommended to use the standard Wi-Fi 5 (802.11ac) or Wi-Fi 6 at a frequency of 5 GHz. Older standards at a frequency of 2.4 GHz may not be able to handle the bitrate of large files, resulting in constant buffering.
⚠️ Please note: When using the 2.4 GHz band, the data transfer speed is often limited to a real 20-30 Mbps, which is not enough for (lossless) viewing of 4K content.
It's also worth checking whether network discovery is enabled on your computer. In Windows operating systems, this is often controlled by the network profile. If the profile is set to "Public," the system blocks incoming connections for security reasons.
Streaming via built-in Windows functions (DLNA)
The easiest way to display an image or video file on a TV screen is to use technology DLNA (Digital Living Network Alliance). This feature is built into Windows 10 and 11 and doesn't require any third-party software. You just need to enable media streaming in the system settings.
To do this, go to the Control Panel, find the "Streaming Media" section, and enable the corresponding option. The system will prompt you to select devices that are allowed to access content. Find your model in the list. Smart TV and allow him access.
Once set up, you can simply right-click the video file on your computer, select "Cast to device," and select your TV. The file will open on the big screen, and playback controls will be available through the standard Windows media player.
☑️ Check DLNA settings
However, this method has limitations in the formats it supports. If the TV can't decode a certain codec, playback won't start, even if the file is transmitted correctly.
Using media servers for advanced capabilities
When standard Windows tools aren't enough, specialized media servers come to the rescue. Programs like DLNA Server, Plex or Universal Media Server They take care of video transcoding on the fly. This allows you to watch files in formats that your TV doesn't support out of the box.
Installing this software turns your PC into a full-fledged media library. You can sort movies by posters, add descriptions, and create playlists. The interface on your TV will look like that of high-end online cinemas, but the content will be pulled from your hard drive.
Setting up the server usually takes a few minutes. After installation, the program will automatically scan the specified folders and index the files. On your TV, simply launch the Media Player or Home Network app, where your server icon will appear.
| Program | Difficulty of setup | Transcoding | Platform support |
|---|---|---|---|
| Windows Media Player | Low | No | Windows |
| Plex | Average | Eat | All OS, Smart TV |
| Kodi | High | Eat | All OS, Android |
| Serviio | Average | Eat | Windows, Linux, Mac |
Why is transcoding necessary?
Transcoding is the process of re-encoding video in real time. If the TV doesn't understand the file format (for example, HEVC 10-bit), the server converts it on the fly to a more understandable format (H.264) to ensure error-free playback.
Screen mirroring and Miracast technology
When you need to show not only a video file, but also desktop content, a browser, or a presentation, wireless display technology is used. In the Windows ecosystem, it's called Connect or MiracastThis method transmits a video stream from the PC's graphics adapter directly to the TV's display.
To connect, press the key combination Win + K in Windows. The "Connection" panel will appear on the right. If your TV supports Screen Mirroring (Samsung) or wireless projection (LG), it will appear in the list of available devices.
Once paired, the image from your computer monitor will be copied completely to the TV. This is convenient for browsing the web or photo albums, but it's less optimal for watching movies due to the potential for audio desynchronization and processor load.
⚠️ Please note: When mirroring your screen, your TV's resolution may be forcibly changed to match your PC monitor's resolution, which may result in the image being stretched or black bars appearing around the edges.
It's important to understand the difference: DLNA transfers the file, and the TV plays it using its own resources. Miracast transmits a pre-processed image, and the TV simply functions as a monitor. In the latter case, the load falls on the computer's graphics card and Wi-Fi connection.
Playback via browser and Chromecast
If you have an Android TV or a built-in Chromecast module, you can use the Google Chrome browser on your computer to cast tabs. This is a universal method that works on virtually any operating system with the browser installed.
Open your browser, click the menu (three dots), and select "Cast." The system will search for available devices on the network. You can choose to cast a specific tab, your entire desktop, or play a media file open in the browser's media player.
This method is convenient because it doesn't require setting up shared folders or servers. Simply open the file in your browser (drag the video file into the tab window) and send it to your TV. Quality and smoothness depend on the power of your Wi-Fi router.
However, for large local files (over 20-30 GB), this method may be unstable. Browsers don't always cache data effectively, which can lead to jerky playback.
Solving buffering and quality issues
Even with proper settings, users may experience video stuttering. This is most often caused by wireless congestion or insufficient disk read speed. If a computer is simultaneously downloading torrents and streaming video, the bandwidth may be clogged.
Check if your router has speed limits (QoS) for specific devices. It's also a good idea to disable power saving on your PC's network adapter to prevent it from going into sleep mode while the movie is paused.
If the problem persists, try lowering the stream quality in the media server settings or switching the TV to a wired connection via a LAN port, if possible. A cable always provides stability unattainable with a wireless connection.
Why can't the TV see the computer on the network?
Most often, the problem is with the network profile. Make sure your PC is set to "Private Network" and not "Public." Also, check that the SSDP Discovery service is enabled in Windows and that your antivirus isn't blocking local connections.
Can you stream video from a Mac to a non-Apple TV?
Yes, this is possible by installing third-party DLNA servers, such as Elmedia Player, or using the Chrome browser with the Cast feature. Native AirPlay only works with TVs that support this protocol.
Does internet speed affect watching movies on a PC?
No, internet speed isn't important when playing local files. Data is transferred within your home network from the router to the devices. Internet access is only needed to download metadata (cover art, descriptions) to media servers.