Fake or Fortune? III

The new series of Fake or Fortune? begins next Sunday on BBC One at 16.30 hours ... er ... 4.30pm (CLICK). Episode 1 investigates this oval painting Couple Eating Oysters possibly by Edouard Vuillard. It doesn't appear in the official French record of Vuillard's works. Around eight years ago it was sold on eBay for £3,000. If it is a genuine Vuillard it could be worth up to £250,000. In May of last year I posted the team's appeal for information about this painting (CLICK). So, is it a genuine Vuillard or not? (Update: 6pm in London.)