Grundig GUSTB160IV Instruction Manual page 27

according to instructions broadcast with the programme (called 'pan and scan').The effect of the WIDE
key on the picture display is cancelled by pressing WIDE again, changing channel or turning the DTR
to standby.
NOTE:
Sometimes the TV will automatically try and compensate for an incorrect screen format, in this
instance set the tv to the correct format whilst viewing the programme.
16x9 picture on widescreen TV
4x3 picture on widescreen TV
16x9 picture on normal TV 4x3 picture on normal TV
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