WGBH lights up 'digital mural'

Allston/Brighton TAB: Commuters coming east into Boston will soon be greeted by images as wide-ranging as the Wright Brothers, sunspots or Iraq, thanks to WGBH's new "digital mural." The network began testing this week on the mural, which is a 30-by-45-foot LED screen, similar to ones found in sports stadiums all over the country.

The screen, which sits on the northwest side of the network's new $76 million headquarters on Guest Street, faces the Massachusetts Turnpike and will display images derived from WGBH programming that will change on a daily basis.

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