Connect and identify the display
Use a suitable connection for the PC and television, then select the matching TV input. Open Windows Settings → System → Display and identify the displays. A desktop appearing on the television establishes an output connection, not the capabilities of every port, adapter or video format.
If no television is detected, check the input, cable and adapter before changing the media player. Use the manufacturer’s capabilities for the complete connection path. A USB-C socket by itself does not prove that a particular computer supports video output through that socket.
Choose how the desktop should behave
Windows supports display arrangements such as Duplicate and Extend, accessible through its display controls or the Windows+P projection menu. Duplicate is useful when both screens should show the same task. Extend gives each screen its own desktop space and allows the player to occupy the TV while controls remain elsewhere.
Choose based on who is using the setup. If someone must operate the PC without seeing the television, an extended arrangement requires a predictable window position. Keep a familiar route back to the normal computer display so a full-screen window does not become difficult to recover.
Arrange the screens and start the player
Match the display arrangement to the screens’ physical positions so the pointer moves in an understandable direction. Select the television when adjusting its resolution or other display settings. Check readable text and the complete frame before deciding the player needs its own zoom adjustment.
Move the player to the intended screen and test a short local clip or permitted stream. Check full-screen entry and exit, then the return to the channel list. A picture on the correct display does not ensure sound follows it, so inspect the Windows audio output separately.
Verify everyday recovery
Practise what happens when the TV is switched off, the input changes or the laptop lid is moved according to the PC’s normal power settings. Record any window that becomes inaccessible and restore a simple display arrangement before seeking more complex fixes.
For support, include whether Duplicate or Extend is selected, the PC and TV models, the adapter path and the stage that fails. Keep serial numbers and account details private. Do not describe a desktop connection as native TV-app compatibility; the application is still running on Windows.