Nick Jr. Channel Schedule (3/24/2021)

How the Universe Works: "Journey to a Black Hole" (season premiere) (8:00 PM)

Mysteries of the Unknown: "Freedom Fighter Sword, Ship Wreak Survivor and Space Explosion" (7:00 PM)

Beyond the Unknown: "Mysterious Lord Lucan, Lecce Labyrinth and Wicked Stepmother" (9:00 PM)