The following methods are about how to operate on TV. One is to use box or dongle for display, the other is to install software on TV. Choose one of the two methods, and both can be used.
1. Use Box or Dongle
You can use projector for display, take the commercial projector as an example, such as BiJie Box/Barco ClickShare/VIA or buy a consumer wireless dongle on Amazon(may be unstable).
BiJie’s Meeting Box supports BJCast / Airport / GooleCast / Miracast / WiDi / DLNA. You only need to connect the box to the TV through the HDMI cable. It also supports multiple mobile phones to cast the screen at the same time.