When does Blue's Room return?

The series centers around the title character and host of the show, Blue, a happy-go-lucky female blue dog who talks and loves to sing, dance, and play with her new friends. Together, they go on adventures, solve different problems, and use their imaginations. In March 2015, the entire series was made available as part of the Noggin app.
The series centers around Blue, a happy-go-lucky female blue dog who talks and loves to sing, dance, and play with her new friends. Blue often interacts with her friends including Sprinkles, a shy little brother who was introduced in the second season as the co-host. Together, they go on adventures, solve different problems, and use their imaginations.