A revelation appears before Santa Claus when he enters Arthur's office.
Buddy and Santa rendezvous in Central Park.
Harrison explains why humans and animals have teeth and teethlike structures.
The Ghost of Christmas Future greets Mr Scrooge.
Fred and his uncle get into an argument about celebrating Christmas.
Harrison finds out how many teeth a shark has and how many they lose each year.
Harrison raps about garbage and why it stinks.
Buddy gets to prove that Santa is real to Michael and Walter.
Mister Maker takes a trip back in time to learn about Italian painter Giuseppe Arcimboldo, known for his imaginative portraiture that used different fish, meats, fruits and vegetables to represent the subject.
Mister Maker reveals stepbystep instructions for making a stingray out of a paper plate, stickers and a crayon in Scraps' surprise party popper.
Ted learns what day it is when Titch helps him count the days on the calendar.
Arthur initially manages to distract the lions before he and Grand Santa run to the sleigh.
When someone bruises their skin, a process that includes blood cells and protein form a new layer of skin. During this process several effects occur.
This clip from BtN is all about the Hindu festival of Holi, held near the start of the northern hemisphere's Spring.What are Hindu's celebrating during Holi? What are some of the traditions around the Holi festival?
Harrison learns that farts can power vehicles.
Harrison explains why some animals try to make themselves look bigger than they really are.
The Behind the News team provide some pointers for younger people on how to deal with difficult events in the news.
Mr Scrooge asks the Spirit of Christmas Past what business it has visiting him.