Two sons battle to overhaul their dad's destructive lifestyle.
2/5 Gregg and Chris help a couple with wildly different approaches to food shopping.
The doctors return to do more science research on the nation's behalf.
1/5 The team help a family spending a fortune on pre-prepared, premium-brand products.
5/5 Eric Knowles looks at the development of the NHS since his own childhood experiences.
4/5 Miriam Margoyles travels to Scotland to unravel her father's Jewish roots.
2/5 Myleene Klass looks at the development of nursing in the NHS.
3/3 This episode follows three people facing up to the reality of life or death with cancer.
UK rapper Professor Green uncovers the truth behind the suicide of his father.
Tracing the spread of AIDS across America. (1983)