For this is the Hanna-Barbera studio building, where they were born, or, more accurately, drawn--a veritable assembly line of ‘toons: Flintstones and Yogi Bear and Scooby Doo and scads of others.

If the rule for covers of widely cherished songs — make it your own, or leave it alone — holds for adaptations of beloved television shows, then in one respect, HBO Max’s “Velma” is a towering success ...