The ITV series Doc Martin is worth millions to the Cornish economy, according to Visit Cornwall.
Doc Martin star Martin Clunes has spoken of his love for Cornwall in an exclusive interview with ITV News West Country.
More than a third of all visits to Cornwall have been triggered by television dramas like Doc Martin or Poldark.
The research by Visit Cornwall said the series had a significant influence on decisions to visit the county.
94% of those who took part in the survey said they wanted to visit the landscape and scenery showcased in the productions.
Sigourney Weaver has been spotted making a cameo appearance in ITV's Doc Martin alongside Martin Clunes.
Martin Clunes is back in Cornwall, filming his hit ITV show Doc Martin. He took a break to speak to us about his love of the county.