The concept of time travel has been a popular science-fiction staple ever since H.G. Wells wrote 'The Time Machine' in 1895. On television, time travel has been used in a variety of intriguing ways, with some shows using it for comedy value, some exploring the wider consequences of temporal manipulation and some using it merely as an excuse to place regular characters in a different setting each week.
To celebrate the release of 'Outlander' on DVD and Blu-ray, we present our list of the top ten time travel TV shows. What's your favourite?
Outlander: Seasons 1 is available on Blu-ray and DVD now.