Several years ago we were hired by the Newark First United Methodist Church to install a new sound system. Recently they asked us to install a new Wireless Video system consisting of three 72" monitors. Two were installed facing the congregation so they could follow the service without having to refer to any books. The 3rd was installed on the wall opposite the choir so they could face the congregation and sing from the lyrics displayed on the monitor. No more looking down at a lyric sheet or hymnal.
The Church utilizes "Media Shout" software which is run from a laptop beside the Mixing Console. The audio is fed to the mixer from the laptop. The video is then fed to the three displays via a Wireless "HD Flow" transmitter and 3 HD Flow receivers.