What options does the Toppy provide for 4:3 television users?
The options for 4:3 television users are Centre cut-out mode, and Letterbox. Centre cut-out always displays the picture without black bars. Widescreen material is handled by zooming to the central section of the picture and cutting off the parts that lie outside. 4:3 material is unchanged, and is displayed as broadcast. Letterbox, where possible, displays a widescreen picture with black bars top and bottom. The broadcaster selects the exact format, which is chosen based on the programme content, and research on how best to display that content on conventional 4:3 sets.
