BSkyB "has become the first advertiser on Clear Channel Outdoor's new Chiswick Towers site, as part of a wider campaign to promote the broadcaster's coverage of Formula 1," according to Maisie McCabe of MEDIA WEEK. The towers "are positioned either side of the M4 motorway between Heathrow airport and central London." They will have a monthly reach of 2.3 million people. The Sky F1 activity "uses the double LED screens on both towers." The Chiswick Towers "are made from weathering steel, so they can rust while staying stable." They are "designed to complement the natural and man-made environment around them through their structure, lighting and landscaping." Media Week