I'm using Chromecast device as the source that's plugged into a J-Tech Digital TM 4 Ports HDMI 1x4 Powered Splitter Ver 1.3 Certified for Full HD 1080P with Deep Color & HD Audio and Max Bandwidth of 10.2Gbps Amazon.com: J-Tech Digital TM 4 Ports HDMI 1x4 Powered Splitter Ver 1.3 Certified for Full HD 1080P with Deep Color & HD Audio and Max Bandwidth of 10.2Gbps: Electronics. I have four TVs plugged in, but only one of them is casting. The interesting thing is that when I plug in my AT&T Uverse as the signal source, all TVs work fine. Any ideas on why the chromecast signal doesn't cast on all four TVs, but only goes to one? Thanks for the help!