Sentence:  Rather than focus on true-to-life drama that might have <WSD>enlightened</WSD> viewers, the BBC, frightened by Tory politicians' threats to its very existence, concentrated its dramatic output on inaccurate historical soap operas, that falsified the view of our past. 
Meaning of the word marked with <WSD> tags:  To make something clear to (someone); to give knowledge or understanding to.