What is vitamin C and why do we need it? Which foods have the most vitamin C? Should we pop pills when we think we're getting a cold, or are we just producing expensive urine? And can vit C really cure cancer, or is it all hype? Alison Ballance and Simon Morton investigate.

We go beyond gaming to explore how VR works, what it's being used for (from treating a fear of spiders, to training young doctors) and ask if it's yet making any compelling case to be in every home.