Passage: Régine Deforges (15 August 1935 – 3 April 2014) was a French author, editor, director, and playwright.Born in Montmorillon, Vienne, Deforges is sometimes called the High Priestess of French erotic literature. Deforges was the first woman to own and operate a publishing house in France. Over the years, she has been censored, prosecuted, and heavily fined for publishing "offensive" literature (Louis Aragon: Irene's Cunt).One of her novels, La Bicyclette bleue (The Blue Bicycle), published in 1981, was France's biggest bestseller. In 2000, it was made into a television series. A story of love, obsession, and survival set during the turmoil of World War II, it developed into a successful series of seven books. La Bicyclette bleue (The Blue Bicycle) would go on to cause a major international intellectual property court case. In the initial ruling, Deforges was found guilty of plagiarizing Margaret Mitchell's famous novel Gone with the Wind. She won her case on appeal, and the ruling ordering her to pay damages was reversed. She was formerly president of the Société des Gens de Lettres de France and a member of the Prix Femina jury. She lived in Paris.

Question: When was the blue bicycle turned into a TV series?
2000