The best of TV and streaming this week
‘Disco: Soundtrack of a Revolution’ is an absorbing history and celebration of a movement; actors and fellow comedians line up to praise the titular ‘Albert Brooks: Defending My Life’; ITV’s ‘The Winter King’ is ultra-violent historical-fantasy; ★★★★★ for ‘Reservation Dogs’ in a moving final season; ‘John Lennon: Murder Without a Trial’ revisits the night the ex-Beatle was shot dead; series 2 of ‘Vigil’ promises action and layers of conspiracy — reviews by Dan Einav