How to stream YouTube from your computer to your TV via Wi-Fi: A complete guide

Do you want to watch your favorite videos on YouTube Not on a small laptop screen, but on a large TV - but without unnecessary wires? Modern technologies make it possible to transmit images from Windows, Mac or even Linux on Smart TV through Wi-Fi, maintaining high quality and minimal latency. The key is to choose the appropriate method from the five available and configure the equipment correctly.

In this article, we will look at all the current methods of wireless broadcasting, from built-in functions YouTube to universal protocols like Miracast And DLNAYou'll learn which method provides the best picture quality, where sound synchronization issues can arise, and how to overcome the limitations of older TV models. You'll also learn why it's sometimes easier to buy Google Chromecast For 3,000 rubles, rather than spending two hours fiddling with the settings Windows 11.

1. Method #1: YouTube's built-in "Stream" feature

The easiest method is to use the button "Broadcast"** (icon with a rectangle and waves) directly in the player YouTubeIt is available in browsers. Chrome, Edge And Opera on Windows/macOS, as well as in the mobile app. This feature works if you have:

• 📺 Smart TV with support Google Cast (most models Samsung 2018+, LG 2020+, Sony Bravia, Xiaomi TV)
• 🖥️ The computer and TV are connected to one Wi-Fi network (not via guest access!)
• 🔄 Updated software on TV (check in Settings → Support → Software Update)

How does this work:

1. Open the video on YouTube in the browser.
2. Click on the icon "Broadcast"** (next to the "Save" button).
3. From the list of devices, select your TV (for example, LG OLED55C1).
4. Confirm the connection on the TV screen (if required).

⚠️ Attention: If the "Broadcast" button is grayed out, check if a browser extension (for example, uBlock Origin). Disable ad blocking on the page. YouTube.

Advantages of the method:

• ⚡ Instant connection without additional programs.
• 🎵 Synchronize audio and video without delays (if the router supports it) 802.11ac or newer).
• 🔄 Possibility to control playback from a computer (pause, rewind).

Flaws:

• 🚫 Doesn't work on older TVs without Google Cast (For example, Samsung Series 5 2016).
• 📶 Requires a stable Wi-Fi connection: if the signal is weak, the video will lag.
• 🔒 Some videos (with age restrictions) may not be broadcast.

2. Method #2: Using Google Chromecast

If your TV does not support Google Cast or you want a more stable broadcast, buy Google Chromecast (from 2990 ₽ per model Chromecast with Google TV). This small device connects to HDMI-TV port and turns any screen into a smart one with Wi-Fi streaming support.

How to set up:

1. Connect Chromecast to the TV and a power outlet (via USB or power adapter).
2. Switch the TV to the source HDMI, where the device is connected.
3. Download the app Google Home on your smartphone or open web version on PC.
4. Follow the setup instructions (select a Wi-Fi network, name the device).

Now when viewing YouTube the browser or application will have the ability to stream video to ChromecastThe main advantage is Support for resolutions up to 4K HDR with stable 5 GHz Wi-Fi.

⚠️ Attention: If you have a dual-band router, connect Chromecast and the computer to the network 5 GHz - this will reduce delays and improve the quality of the broadcast.

Insert Chromecast into TV's HDMI port|

Connect power (USB or adapter)|

Install the Google Home app|

Connect to the same Wi-Fi network as your PC|

Update Chromecast firmware on Google Home-->

3. Method #3: Miracast Protocol (Wireless Display)

Miracast — is a wireless screen transmission standard built into Windows 10/11 and many Smart TVIt allows duplicate your computer screen on TV without additional devices, but with some restrictions:

• 🖥️ Works only on Windows 8.1+ And Android 4.2+ (on macOS third-party software required).
• 📺 The TV must support Miracast (check the menu) Settings → Network → Miracast or Screen Mirroring).
• 🎮 Latency can reach 100–200 ms—not suitable for gaming, but normal for video.

Instructions for Windows 11:

1. Click Win + K (or open Settings → System → Display → Connect to a wireless display).
2. Turn on Miracast on TV (for example, on Samsung This Settings → General → Screen Mirroring).
3. Select your TV from the list of available devices.
4. Confirm the connection on the TV screen.

If Miracast can't find TV:

• 🔧 Update your Wi-Fi adapter drivers on your PC (via device Manager).
• 📡 Reconnect to the Wi-Fi frequency 5 GHz (on 2.4 GHz there may be interference).
• 🔄 Restart your router and TV.

Why is Miracast slow?

Delays occur due to real-time video compression. Miracast uses a codec H.264, which requires processor power. On weak PCs (for example, Intel Celeron) or when transmitting 4K, the picture may lag. Solution: reduce the screen resolution on your PC to 1920×1080 before connecting.

4. Method #4: DLNA/UPnP for local network

Protocol DLNA allows you to stream media files (including videos from YouTube) from a computer to a TV via a local network. Unlike MiracastHere, it's not the screen that's transmitted, but the video stream itself—so delays are minimal. However, this method requires some preliminary preparation.

What you will need:

• 🖥️ Media server program on PC: Plex, Kodi or built-in DLNA server for Windows.
• 📺 TV with support DLNA (most models after 2015).
• 📥 Video with YouTube must be downloaded to your computer (or use YouTube Premium for offline viewing).

Step by step instructions for Windows 11:

1. Turn on DLNA server:

   Control Panel → Network and Internet → Network and Sharing Center → Change advanced sharing settings → Turn on media sharing

2. Add a video folder to the library Video (right click → Include in library).
3. On your TV, open the app DLNA (For example, SmartShare on LG or AllShare on Samsung).
4. Select your computer from the list of devices and play the file.

For convenience, it is better to use Plex:

• 🔹 Download Plex Media Server With official website.
• 🔹 Add a video folder to the library Plex.
• 🔹 Install the application Plex on TV (available in LG Content Store, Samsung Apps etc.).

⚠️ Attention: Some televisions (eg. Xiaomi Mi TV 4A) do not support playback MKV or MP4 with codec H.265 through DLNAIn this case, use Plex - It transcodes video on the fly.

5. Method #5: Steam Link for gamers and others

If you use Steam on PC, you can stream the entire desktop (including browser with YouTube) to the TV via the app Steam LinkThis method is suitable for:

• 🎮 Gamers who want to play on the big screen.
• 🖥️ Users who need to duplicate full screen, and not just video.
• 📡 For those with weak Wi-Fi: Steam optimizes the flow to minimize lags.

How to set up:

1. Install Steam Link on TV (available in Google Play For Android TV or as a separate application for Samsung/LG).
2. Launch Steam on your computer and log in to your account.
3. In the settings Steam turn on Remote Play (Settings → Remote Play → Enable Remote Play).
4. Connect a gamepad (optional) and select your PC in the app Steam Link on TV.

Advantages:

• 🎛️ Low latency (around 30–50 ms) thanks to optimization Valves.
• 🔧 Possibility to set the bitrate manually (from 5 Mbps to 50 Mbps).
• 🖱️ Bluetooth mouse and keyboard support.

Flaws:

• 🚫 Requires a powerful PC (from Intel Core i5 or Ryzen 5).
• 📶 If the Wi-Fi connection is weak, the picture will be blurry.
• 🔒 You need to have an account Steam (free).

6. Troubleshooting: delays, disconnections, no sound

Even with proper setup, problems can still arise. Here are the most common ones and how to solve them:

If nothing helps, check:

• 🔌 Are the PC and TV connected to one router (not via a repeater or Mesh system).
• 🛡️ Is the broadcast blocked by a firewall or antivirus (for example, Kaspersky).
• 📦 Are the firmware updates on your TV and router?

⚠️ Attention: On some routers (for example, TP-Link Archer C6) you need to manually enable support Multicast For DLNA And MiracastGo to your router's control panel (192.168.0.1) and find the option IGMP Snooping - she must be Included.

7. Comparison of methods: which one to choose?

To make your decision easier, we've compiled a comparison table of all the methods:

Recommendations for selection:

• 🎬 For viewing YouTube in modern Smart TV - use built-in broadcast or Chromecast.
• 💻 To duplicate the entire screen - Miracast (if TV supports) or Steam Link.
• 📁 For local files - DLNA (Plex or Kodi).
• 🕹️ For games only Steam Link (minimal lags).

FAQ: Frequently Asked Questions

Is it possible to stream YouTube from a computer to a TV without Wi-Fi?

Yes, but it will be necessary HDMI cable or an adapter (for example, USB-C to HDMI (for laptops). Wireless alternatives without Wi-Fi:

• 📶 Bluetooth - for sound only, video will not be transmitted.
• 📡 Wi-Fi Direct - if TV and PC support it (it rarely works stably).

It is best to use HDMI for maximum quality without delays.

Why does the video lag behind the audio when streaming via Miracast?

This is a typical problem. Miracast because of:

• 🖥️ Weak processor on your PC (try closing unnecessary programs).
• 📡 Network interference 2.4 GHz (switch to 5 GHz).
• 🔧 Incorrect sound settings (in Control Panel → Sound select format 16 bit, 44100 Hz).

If nothing helps, use Chromecast or DLNA.

How to stream YouTube from Mac to TV?

On macOS The same methods are available, but with some nuances:

• 🍎 AirPlay - works only with Apple TV or TV with support AirPlay 2 (For example, LG OLED 2020+).
• 🌐 Built-in "Broadcast" button in Safari or Chrome (similar to Windows).
• 🖥️ Miracast - requires third-party software like AirParrot or Reflector.

For Chromecast or DLNA The settings are the same as on Windows.

Is it possible to stream YouTube in 4K without losing quality?

Yes, but with conditions:

• 📺 The TV must support 4K@60Hz And HDR.
• 📡 Router - standard Wi-Fi 6 (802.11ax) or 5 GHz 802.11ac.
• 🖥️ Broadcast method — Chromecast Ultra or Chromecast with Google TV.
• 🎥 The video on YouTube must be uploaded to 4K (check in player settings).

Miracast And Steam Link They won't work in 4K - that's the maximum resolution 1080p.

What if my TV doesn't support any of the methods?

If you have an older TV model (for example, Samsung Series 3 2014), the options are:

• 🔌 Buy Android TV box (For example, Xiaomi Mi Box S for 3500 ₽).
• 🖥️ Use it HDMI cable for direct connection.
• 📡 Buy Wi-Fi adapter with Miracast (For example, Microsoft Wireless Display Adapter).

The most universal solution is Chromecast or Android set-top box.