Connect a MAC to a TV

Turn on the TV

tv remote power
The TV Remote is on the back of the TV with a velcro strip

Option 1 - Connect with HDMI cable

hdmi on tv
Each TV has a 10 foot HDMI cable connected to the TV by a velcro strap.
hdmi
Plug the HDMI cable into the HDMI port on your computer.
Sometimes the TV will ask you to press the down button on the remote if you are connecting to a computer. If it does, press the down button on the remote.
Congratulations! You should now see your computer screen on the TV.
If the TV is not receiving audio from your Mac, choose Apple menu > System Settings (or System Preferences), then click Sound. In the Output pane, make sure that the TV is selected.
mac sound settings