LOS ANGELES (Reuters) – Some 28.1 million Americans watched the Grammy Awards show on television, a predictable 30 percent drop from last year's emotion-filled ceremony following the death of singer Whitney Houston, according to ratings data on Monday. Despite the lower numbers, Sunday's 3-1/2-hour show broadcast live on CBS was the second-largest TV audience for the music industry's big night since 1993, and many critics gave the show a thumbs up. …