Modern video viewing often requires a larger screen than a laptop or desktop PC monitor can offer. When you want to enjoy high quality 4K HDR With a large screen, it becomes necessary to stream content from your computer to your TV. Fortunately, technology allows you to do this without unnecessary wires, using only the capabilities of your home wireless network.
There are several proven methods, each with its own advantages depending on your TV model and operating system. We'll look at how to set it up. Smart TV, use built-in Windows and macOS features, and even use third-party devices. With the right setup, you can forget about small screens and enjoy content with friends.
Before you begin setup, make sure both devices - your computer and TV - are connected to the same network. Wi-FiThis is a fundamental requirement for most data transfer protocols. If the router broadcasts the network on both 2.4 GHz and 5 GHz frequencies, it's best for both devices to be in the same band to ensure a stable connection.
Using the built-in Cast feature in the Google Chrome browser
The easiest and most accessible way for most users is to use a browser. Google ChromeThis method doesn't require installing any additional software, as the feature is built directly into the browser shell. It's ideal for quickly sharing videos or watching clips on a large screen without lag.
To get started, open your browser and go to the YouTube website. In the upper right corner, you'll see three vertical dots—this is the settings menu. Click it and select Save and share, and then Broadcast..The system will begin searching for available devices on your local network.
In the window that opens, select your TV from the list. It's important to pay attention to the "Source" option. You can stream just the current tab, the entire desktop, or a specific file. For YouTube, the "Tab" mode is best, as it provides the best picture quality.
It's worth noting that this method is sensitive to wireless signal quality. If the router is far away, image artifacts may occur. In this case, try moving closer to the access point or switching to a wired connection for your PC, leaving the TV on WiFi.
Connecting via the Projector app in Windows 10 and 11
Microsoft operating systems offer a native wireless display tool called "Projector." This feature is based on technology Miracast and allows you to duplicate your computer screen on your TV without using a router (works via Wi-Fi Direct).
To activate this feature, press the combination on your keyboard Win + KA connection panel will appear on the right. If your TV supports Miracast, it will appear in the list of available devices. On some TV models, you may need to launch the "Screen Mirroring" or "Cast" app first.
Once connected, the image from your computer monitor will be fully displayed on your TV. This is convenient not only for YouTube but also for other tasks. However, keep in mind that in this mode, everything that happens on the screen will be broadcast, including notifications and system sounds.
Why can't the TV see the computer?
Often, the problem lies in the Windows Firewall or antivirus settings. Make sure your network is marked as "Private" and not "Public," otherwise the system will block device detection.
Miracast transmission quality may be inferior to a wired connection, especially during fast-paced scenes. It's a great option for viewing static videos or slideshows, but micro-lags may be observed with games or high-bitrate 4K videos.
Stream from your Mac via AirPlay 2 to an Apple TV or Smart TV
The protocol is available to Apple device owners AirPlay 2, which ensures stable and high-quality transmission of media content. Many modern TVs from Samsung, LG, Sony, and Vizio already have built-in support for this standard, eliminating the need for an Apple TV set-top box.
To start streaming, open a YouTube video in the Safari browser or the YouTube app on macOS. In the menu bar or video player interface, look for the rectangle icon with an arrow at the bottom. Click it and select your TV.
The AirPlay protocol is characterized by low power consumption and a highly stable connection. Video is transmitted in high resolution, and audio can be output to the TV speakers, the computer, or connected AirPods, depending on the audio output settings in macOS.
It's important to enable AirPlay support on your TV. This is typically done through the network settings or Apple connection menu. Some models require you to enter a code that appears on the TV screen to pair with your computer for the first time.
☑️ Check AirPlay readiness
Comparison of connection methods: characteristics table
Choosing the best method depends on your priorities: image quality, ease of setup, or lack of lag. Below is a comparison table to help you decide which method is best for your situation.
| Method | Image quality | Latency | The need for a router |
|---|---|---|---|
| Google Chrome Cast | High (up to 4K) | Low | Required |
| Windows Projector (Miracast) | Medium/High | Average | Not required (Wi-Fi Direct) |
| AirPlay 2 | Very high | Minimum | Required |
| DLNA (Via TV menu) | Depends on the codec | Low | Required |
As the table shows, methods using direct streaming (Cast/AirPlay) are best for watching YouTube, as they put less load on the computer's processor. Protocol Miracast It is good for its versatility, but can be capricious with regard to video card drivers.
If you plan to watch content regularly, it's worth checking your TV's codec support. Some older models may not display HDR content correctly over wireless transmission, converting colors to a standard range.
Using DLNA and built-in Smart TV apps
Many modern TVs are equipped with the function DLNA (Digital Living Network Alliance). This allows you to stream media files from your computer to your TV, using the TV as a remote control. Unlike screen mirroring, the TV itself decodes the video stream.
To use this method, media streaming must be enabled on your computer. In Windows, this is done through "Media Streaming Settings" in Control Panel. Once enabled, your PC will be visible to the TV as a media server.
On the TV remote control, press the signal source selection button (Source or Input) and find your computer in the list (often it is called by the user name or as Media Server). Inside you will see folders with videos, music, and photos.
⚠️ Attention: Supported video file formats depend solely on the capabilities of your TV, not your computer. If the file doesn't play, convert it to MP4/H.264.
This method is ideal for viewing downloaded content, but it is less convenient for online YouTube, as it requires the use of the TV's built-in browser or special client applications, which may run slower than on a PC.
Hardware Solutions: Google Chromecast and HDMI Adapters
If your TV isn't a Smart TV or its built-in system is slow, your best bet is to buy an external streaming device. Google Chromecast or similar dongles with Android TV turn any screen with HDMI into a smart terminal.
The device connects to the HDMI port and is powered via USB. After initial setup via a smartphone app, the computer sees it as a target device for streaming. This relieves the PC's processor, as the TV (via the set-top box) automatically downloads and decodes video from the internet.
The advantage of hardware solutions is stability. They have dedicated processors and Wi-Fi modules optimized specifically for receiving video streams. This eliminates the stuttering that can occur when streaming software from a powerful computer busy with other tasks.
⚠️ Attention: When using external adapters, make sure the HDMI port supports the protocol. HDCP 2.2If you plan to watch 4K content, older ports may limit the resolution to 1080p.
There are also HDMI cables with built-in Wi-Fi, but they typically require external power and often offer inferior connection quality to full-featured media players. For regular use, it's better to choose a full-featured set-top box.
Solving buffering and quality issues
Even with proper setup, users may encounter issues. The most common is constant buffering (videos pausing to load). This indicates insufficient channel bandwidth or interference.
Try lowering the video quality manually in the YouTube player settings. If the problem resolves when you lower it from 4K to 1080p, your WiFi channel is overloaded. Restarting your router, which clears the cache and selects a less congested channel, may also help.
Another problem is audio and video desynchronization. This can often be resolved by updating the computer's graphics card drivers or updating the TV's firmware. In some cases, disabling surround sound effects in the TV settings can help.
⚠️ Attention: TV menu interfaces and item names may vary depending on the manufacturer (Samsung, LG, Sony) and operating system version. Always consult the official documentation for your model.
If all else fails, check if your router has speed limits (QoS) for specific devices. Sometimes, smartphones are prioritized, leaving PCs and TVs with residual speeds that aren't sufficient for high-quality streaming.
Why doesn't the computer see the TV in the list of devices?
Most likely, the devices are on different networks (for example, one is on a guest WiFi network and the other is on the main network) or the AP Isolation feature is disabled on the router. Also, check if Network Discovery is enabled in Windows settings.
Is it possible to watch YouTube without unnecessary fluff via streaming?
Casting via the Chrome browser often duplicates an ad blocker if one is installed in the browser. However, when using built-in Smart TV apps or AirPlay, ads may still appear, as they are loaded directly to the TV.
Does broadcasting affect internet speed?
Yes, streaming high-definition video (4K) consumes a significant portion of your bandwidth (up to 25 Mbps). If someone else is downloading files or playing online games at the same time, they may experience lag.