Is there a way to cast a PC display to Samsung Smart TV over ethernet? Both devices are on the same network.
Think it's possible to do this with Miracast (wireless technology used for mirroring the screen of your PC to your TV). The TV must support Miracast, otherwise you have to buy a Miracast adapter. If your PC supports Miracast, you can try to search for 'Devices' in settings and then 'Add a wireless monitor'.