Freeview box is one of those new HD ones connection to the telly is by HDMI cable
Anyway,I have done it!!,activated the USB socket on the back of the telly,had to download the early version of firmware 3.15 from the net onto a USB stick,flashed the firmware in the set back from 3.55 to 3.15 then I could access the service menu and do as that bloke instructed, well nearly, but said rear USB socket is now working for me not for just the service engineers would not advise anybody lacking self confidence to try this though.
One hates being beat by a machine.
Thanks for the help chaps
Just played some 1080p HD clips I downloaded from youtube,spiffing!!