“Mister Rogers’ Neighborhood” first appeared on PBS in 1968. For the next three decades, Fred Rogers taught children about everything from how crayons are made to how it feels to lose a beloved pet. Now, more than a 10 years after his death, Fred Rogers’ production company is keeping his legacy alive with new shows guided by his philosophy, and even featuring some of his old characters. This includes “Daniel Tiger’s Neighborhood,” “Peg + Cat” and the newly released “Odd Squad.” A conversation about the enduring influence of Fred Rogers