The best of TV and streaming this week

Claire Danes and Tom Hiddleston star in ‘The Essex Serpent’; Sally Rooney’s ‘Conversation with Friends’; a TV version of ‘The Time Traveler’s Wife’; Amy Schumer writes and stars in ‘Life & Beth’; hard-hitting French drama ‘Oussekine’ follows the aftermath of a murder; war correspondent Fergal Keane opens up about PTSD — reviews by Fiona Sturges and Dan Einav