So, yeah… doctor Harvey Karp’s “5 S” strategy is old news to seasoned parents. After all, his film “The Happiest Baby on the Block” came out in 1993, and his book followed 10 years later. But his methods for soothing babies — outlined in a kick-ass 90s low-def video, complete with big bangs and period-specific upholstery! — still ring true in 2019. And for good reason… the Happiest Baby on the Block 5 S’s work like a frikkin’ charm….