What's on TV: Friday, July 13

How Reagan and Thatcher Saved the World

SBS, 8.25pm

Respectively America's president and Britain's prime minister in the 1980s, Ronald Reagan and Margaret Thatcher are oft-cited icons of conservative politics. But as this playfully informative documentary posits, they were also incisive ecological saviours. In 1987 they helped lead the push for the Montreal Protocol on Substances that Deplete the Ozone Layer, a worldwide treaty that successfully phased out man-made chlorofluorocarbons, the non-toxic chemicals used in manufacturing that were nonetheless depleting the ozone layer and threatening life on earth. Draw your own conclusions about today's climate change denialists. CM

The Graham Norton Show.

The Graham Norton Show.

The Graham Norton Show: Good Guest Guide

Ten, 8.30pm

Now that he's the successor to Michael Parkinson as Britain's benchmark chat show host, you can forgive Graham Norton for taking it easy for a week with what is essentially a clip show, albeit one presented under the guise of explaining what makes for the right guest. "Get there on time, be famous, and tell a good story," he suggests, but veterans such as Ricky Gervais (10 appearances) emphasise the availability of alcohol and a good sense of humour. The clips are amusing, although you might note the comparative absence of the Hollywood stars who regularly perch on his couch. CM

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