If you connect your desktop via vga and ps4ps3 via hdmi then you still have 1 spare hdmi port for your tata sky or other device

You have to set it to 100 to get great sound output

With 2 hdmi ports and 1 vga port i have my desktop and ps4 hooked to it on both the hdmi ports and still have a vga port in spare to hook up the occasional laptop or other device