Old age - burden or triumph?

Available for over a year

The developed world is ageing rapidly. Some estimates say a third of people in North America, China and Europe will be in their 80s by 2050. What does this mean for retirement and pensions? Longer working lives? More support from younger generations? But demographics aside, old age can mean new challenges and interests - we meet the "silver surfer", the 82-year old internet blogger from rural England.