This week's UK TV & radio

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Listings for BBC 4 on Thursday, February 28 2019

05:30..programmes start at 7.00pm No programme information available 
11:30..programmes start at 7.00pm No programme information available 
17:30..programmes start at 7.00pm No programme information available 
18:58This is BBC Four This is BBC Four. Programmes start at 7.00pm. 
19:00Beyond 100 Days The latest national and international news, exploring the day's events from a global perspective. [S] 
19:30Top of the Pops Gary Davies presents the pop chart programme, first broadcast on 14 May 1987 and featuring Johnny Hates Jazz, The Cult, Europe, Labi Siffre, Wet Wet Wet, Tom Jones and Starship. [S] 
20:00The Human Body: Secrets of Your... ...Life Revealed. 2/3. Chris and Xand van Tulleken look at what keeps the human body alive, including reflexes, damage repair mechanisms and the immune system. [S] 
21:00Wild Swimming Alice Roberts swims in cavernous plunge pools, languid rivers and underground lakes to examine the passion for wild water swimming, following the classic swimming text Waterlog. [S] 
22:00Apples: British to the Core Chris Beardshaw uncovers the British contribution to the history of our most iconic fruit and sees how 20th-century British scientists helped create the modern mass-market apple. [S,AD] 
23:00The Secret Rules of Modern... ...Living Algorithms. Marcus du Sautoy demystifies the hidden world of algorithms, revealing where these 2,000-year-old problem-solvers came from, how they work and what they have achieved. [S] 
00:00Top of the Pops Gary Davies presents the pop chart programme, first broadcast on 14 May 1987 and featuring Johnny Hates Jazz, The Cult, Europe, Labi Siffre, Wet Wet Wet, Tom Jones and Starship. [S] 
00:30Timeshift 5/5. Timeshift ventures inside places of sporting achievement, scientific endeavour and male obsession - the lofts of pigeon fanciers - to tell the story of a remarkable bird. [S] 
01:30Peggy Guggenheim: Art Addict Documentary about Peggy Guggenheim, an heiress who became a central figure in modern art. Contains some strong language. [S] 
03:00Wild Swimming Alice Roberts swims in cavernous plunge pools, languid rivers and underground lakes to examine the passion for wild water swimming, following the classic swimming text Waterlog. [S,SL] 
04:00This is BBC Four This is BBC Four. Programmes start at 7.00pm. 
05:30..programmes start at 7.00pm No programme information available