So, after 5 years my younger brother has finally decided to give me my xbox360 back.

The problem I have is that my plasma is an older model still going strong. It only has two HDMI inputs.

In input 1 I have my Sky box. In input 2 I have my Chromecast.

I purchased a HDMI splitter off eBay which I put the xbox (because it's off and shouldn't be giving a signal) and the Chromecast, however the image was flickering.

I put it in input 1 with the Sky box but the screen was black.

Any further