If you ‘long press’ the button for several seconds, does that perhaps work for you?

Unfortunately not. Thanks though 

Have you got HDMI auto-power-sync (or similar feature) enabled in the TV settings? For example, on an LG TV  it’s a feature within ‘Settings/Connection/HDMI Device Settings’ - perhaps look for that feature, or a similar option on your TV and try that with the V6 remote.

Also here’s another thing to try… Ensure the correct code is setup for your make/model of TV.

On the V6 box goto "Home/Help & Settings/Help/Virgin TV" and select ‘Programme Your Remote’ and follow the onscreen instructions to setup/control your TV with the V6 remote.

Thanks for your help. I found a setting on my virgin box that lets me turn on/off devices connected via hdmi. 

Can I ask which setting that is snd where it’s located in the settings menu… always useful to know these things, thanks

Virgin box: settings - system - one power - on

this turns on (and standby) devices attached via hdmi when you press the red power button on the v6 virgin control.