Unlike The Three Bears in the classic fairy tale, Sesame Street's Three/Four Bears are certainly sentient characters, and do not regularly appear together. Since season 34, Curly has been the second most frequently-appearing of the Bears, after Baby Bear. Curly never appears in an episode without Baby Bear.
In episode 4059, Curly Doesn't Like Porridge, Baby Bear is horrified to learn Curly doesn't like porridge. Alan explains to Baby Bear that it's okay if family or even best friends have different tastes, and their differences can even be a special part of Curly and Baby Bear's relationship.
In Elmo's World: Happy Holidays, it was revealed that the Bear family was Jewish. While this special takes place before Curly's birth, it is highly likely that Curly is also Jewish.
Episodes Curly appears in
Season 35 (6): 4057 (Sesame Street Present: The Street We Live On), 4059 (Curly Doesn't Like Porridge), 4066 (The New Four Bears Story), 4073 (Baby Bear Tries to Teach Curly to Draw), 4076 (Baby Bear Adjusts to Curly's Big Growl), 4078 (Baby Bear Can't Get Curly to Fall Asleep)
SesameStreet is an American grown instructive TV series for pre-school children and leads the way in terms of contemporary educational television standards, combining both education and entertainment.
SesameStreet is produced in the USA by Sesame Workshop a non-profit organization, previously known as the Childrens Television Workshop (CTW), founded by Joan Ganz Cooney and Ralph Rogers.
SesameStreet is broadcast universally; as well as the U.S. adaptation, several countries have locally fashioned versions adapted to local requirements, some even have their own characters, and in addition are produced in a variety of different languages.
Baby Bear is the most important character from the Bear family on SesameStreet, and is best friends with Telly Monster.
Unlike The Three Bears in the classic fairy tale, SesameStreet's Four Bears are certainly sentient characters, and do not regularly appear together.
Baby Bear has always been, and likely will always be, the most frequently appearing character from the Bears, as he is the age and mindset of many viewers of the show.