We frequently lose sound when switching on the TV. Changing source on the TV so as to use Freeview gives us sound but as soon as we switch back to HDMI there is no sound. When it first started several months ago just clicking back and forth with channel change button used to bring sound back. Over time the problem has got more frequent and more difficult to resolve( switching off and on of the whole system, clicking all sorts of button combinations etc.)
Today took over an hour of trying rebooting several times and the obligatory button clicking, enough is enough, Can you please help sort this out once and for all.