"Sid the Science Kid" is a children's show on PBS. The story line follows a young boy each day as learns to follow his curiousity about the world around him through scientific method. Sid is a preschool aged boy who gets dropped off by his mother at preschool each day. After playing and exploring, he is picked up by his grandmother, the Grandma character. This Grandma is presumably single, very engaged in seeing her grandchildren, but also involved in many separate interests like adopting a dog, sustainable living and yoga. Grandma is also actively employed as a nurse.
The show's website can be found at Sid the Science Kid on PBS.org.