Use AirPlay if your TV supports it
Connect your MacBook and TV to the same Wi-Fi network
Open Control Center on your MacBook
Click Screen Mirroring
Select your TV
Enter the AirPlay code if prompted
Use an HDMI cable and adapter if AirPlay is not available
Connect the adapter to your MacBook
Connect the HDMI cable to the adapter and TV
Select the correct HDMI input on your TV
Open System Settings on your MacBook
Go to Displays
Choose your TV as the display
Adjust mirroring or extended display settings if needed
Use a streaming device like Apple TV, Chromecast, or Roku if supported
Open the casting or AirPlay option in the app you want to use
Select your TV or streaming device
Make sure both devices are updated if casting does not work