TV tonight: a battle of the lawyers in this glossy John Grisham series

John Slattery stars in The Rainmaker, which is already a hit in the US. Plus: catch Fontaines DC’s set at Reading Festival. Here’s what to watch this evening 9pm, ITV1This glossy legal drama, a hit in the US last year, is based on John Grisham’s novel. Set in Charleston, it follows ambitious young couple Rudy (Milo Callaghan) and Sarah (Madison Iseman) who are associates at the esteemed Tinley Britt. But Leo is fired after a run-in with John Slattery’s smarmy boss Leo – and he takes a job at a slightly less, let’s say, refined firm. Cue a battle of the lawyers. Hollie Richardson 7pm, BBC FourA Proms debut as New York’s Met Orchestra take their place on the Royal Albert Hall stage for the first time, under the baton of music director Yannick Nézet-Séguin. They’ll be playing a programme of music by Richard Strauss – highlights include the final scene of Salome sung by soprano Elza van den Heever. Phil Harrison 8pm, BBC TwoBurn after weeding: the scorching summer has been a punishing one for many gardens, but Monty Don is on hand with advice on how to help water-starved plants and lawns recover. Other horticultural highlights include an update on Rekha Mistry’s attempts to harvest fru