Complex sentence: Redwood subsequently learned the anthem but, in August 2007, an unconnected news story on Redwood was illustrated with the same clip resulted in Tory activists filing complaints and as a result the BBC apologised to Redwood for airing the dated footage.
Split into simpler sentences: Redwood subsequently learned the anthem but, in August 2007, an unconnected news story on Redwood was illustrated with the same clip. This resulted in Tory activists filing complaints, and as a result the BBC apologised to Redwood for airing the dated footage.