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Joe Lycett vs Sewage
(Channel 4)
A programme looking at the water companies and their appalling approach to sewage overflows (basically, dumping it in the rivers and seas). It culminated in tens of thousands of people emailing their water companies demanding dividends stop being paid while the crisis continues, plus I got an email from The Church of England (ie God) saying they too were concerned.
Watch on Channel 4.
More details on how to email your water company at Turdcast.