Viewers of “Odd Squad” will not be all that familiar with Valentina Herrera, Jayce Alexander, Alyssa Hidalgo and Gavin MacIver-Wright when they take to the PBS Kids schedule sometime in 2020 for the third cycle of this popular kids’ program. Producers are betting fans of the program and others who have yet to sample it will embrace them quickly. A cast shake-up is not the norm for most series, but for “Odd Squad” it has fast become de rigueur.
Across kids’ TV, most favorites rarely change. Curious George looks almost the same now as he did when he debuted in 2006. The same is true for Nickelodeon’s SpongeBob SquarePants.