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Sundays at 7.30pm on TVNZ 1
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Sundays at 7.30pm on TVNZ 1

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Sunday – Sunday 9 Jul

  • Series 2017, Episode 19

PGR Tonight, take a look at a silent and deadly gene that can destroy your brain. Also, reporter Denham Hitchcock tries an extreme diet designed to increase your lifespan.

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Sunday 9 Jul
  • Series 2017, Episode 19
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