"Downton Abbey" has put a spotlight on all things British. Now the British tourism board, VisitBritain, is using that attention to showcase the country in a two-day pop-up shop, at 78 Mercer Street in SoHo, from noon to 6 p.m. Friday and Saturday. Everything from tea to gin-based cocktails will be featured. For World Water Day on Friday, City Winery and Stark Wine will host a tasting of six wines paired with oysters from 6 to 8:30 p.m. at the winery, 155 Varick Street. Norwegian Skrei tastings throughout New York restaurants continue through Sunday. Skrei is a sustainable cod caught in the Artic regions that is considered a delicacy. The participating restaurants - including Aamanns Copenhagen, Annisa, Aquavit, Back Forty and Back Forty West, Grand Central Oyster Bar, the John Dory Oyster Bar, Oceana and Smorgas Chef - will cook their own skrei dishes for lunch and dinner tastings. Broadway Panhandler, 65 East Eighth Street in Greenwich Village, will sharpen three knives for $12 on Saturday and Sunday between 11 a.m. and 5 p.m. The proceeds will be donated to City Harvest. Resident Magazine partners with Ktchn Restaurants on Sunday from 1 to 5 p.m. at the Flatiron Hotel, 9 West 26th Street in the Flatiron district, for the first Tasting New York festival. Chelsea Market, 75 Ninth Avenue, transforms into a large stage for the annual Sunday Supper put on by the James Beard Foundation. Chefs like Justin Brunwasser of Friedman's Lunch, which is located in the market, and Stephanie Izard from the Girl and the Goat in Chicago will collaborate to cook a long menu meant for family-style dining. The dinner starts at 6 p.m., and tickets are $240 for the general public. While tickets are limited for this popular event, there is also a wait list for guests interested in attending.