Avast me hearties, Nickelodeon’s The Backyardigans: We Arrrr Pirates DVD is here. Set sail on March 8, 2011 with four exciting pirate adventures. The five backyard buddies are off on a sea worthy adventure with your preschooler. Join them as they train at Pirate Camp, learn the mambo with Sinbad, rescue King Pablo from a Not-So-Nice-Dragon, and search for pirate treasures. You can be sure your kids will be thrilled with these exciting, musical and imaginative episodes from The Backyardigans. Also…