Could a curious wall painting discovered in the bedroom of a Surrey cottage be the work of one of the pioneers of modern British art, Ben Nicholson? Show more

Henrietta Sitwell inherited a sketch she believed to be by the 20th-century artist Amedeo Modigliani, but she has also been told it might not be genuine. Can the team find some answers? Show more

Americans Kim and Chuck believe their landscape painting is by one of the founders of impressionism, Alfred Sisley. Can the team help them build a case and prove its authenticity? Show more

Could an epic work in a church in Port Glasgow be a lost masterpiece by one of the great painters of Northern Renaissance art, or is this depiction of Christ a much lesser work? Show more