I have a couple 50 foot HDMI runs (Monoprice 24awg I believe) coming off a gefentv 1:4 splitter and they are not 100% reliable. Depending on the device and display I lay not be able to get a handshake... even at 720p. 1080 is even worse. I have tried a monoprice equalizer at the end of the runs with no luck. If I remove the splitter it seems to solve the problems but I need some way of getting the output to multiple display. Any ideas?