You would not believe what can go in a box with four ports (3xHDMI and once current wrong ;-) everything. The seller was here but with remarkably detailed support, advice and remarks aside. The start-up problems were not at my inability to connect the four cables properly, but some peculiarities of the HDMI standard.
In a nutshell:
It could be spent on TV only one image when the projector was running in parallel. Beamer went alone. However, television is not alone. The beamer "mixed" Also in standby simply interfere with the communication of the splitter to the TV a - expressed sometimes amateurish. A radio-controlled socket for complete disconnection from the power of the projector brought Remedy.
A problem with the use of the splitter, unintentional automatic switching on and off the TV, when you operate your BluerayPlayers let himself off about some little hidden submenus on the TV.
Unfortunately, only the transmission of signals in 24p mode works for me not, although the splitter must give it according to the seller ... well ...