The best of TV and streaming this week

‘How to Get to Heaven from Belfast’ is an entertaining ride from the Derry Girls creator; Ryan Murphy’s ‘Love Story’ turns its gaze on JFK Jr and Carolyn Bessette; ITV spy thriller ‘Betrayal’ boasts star turns by Romola Garai and Shaun Evans; ‘Lord of the Flies’ gets its first-ever TV adaptation on BBC1; ‘The Muppet Show’ returns for a delightful one-off special; Mackenzie Crook’s new comedy ‘Small Prophets’ follows a lonely man railing against modernity — reviews by Rebecca Nicholson