Do you need anything more than Melissa McCarthy, Elmo, and a nutso penguin who choreographs a dance to a song called flap-a-waddle boom boom? At least, I think it’s called the flap-a-waddle boom boom?

Here are six things to know: 1. Children’s Hospital Los Angeles recently connected Sesame Workshop, the nonprofit that produces “Sesame Street,” with Augment Therapy, a digital health startup the ...