Thank you for responding.
Currently have satellite receiver connected to TV via scart
You view box connected via hdmi to TV and aerial in lead to you view box .Satellite receiver of course has separate connection externally to its dish
Dvd connected to TV via hdmi
TV works fine
DVD player works fine
You view box works fine
Satellite receiver .....doesn't work
Thank you
Ps my TV has two spare hdmi slots (4in total)