Nickelodeon is back with a brand new DVD, that celebrates the fun of brothers, sisters and family. Nickelodeon Favorites: Sisters and Brothers features episodes of Dora, Diego, Blue Clue’s, Wonder Pets, and Ni Hao – Kai-lan; as they deal with their siblings. Yes, sometimes our brothers and sisters can be too much, but it they work together they can forget their differences and build positive relationships. Packed with five different episodes and two new Team Umizoomi music videos, this DVD…