An okay premiere for ABC's 'The River' New drama averages a 2.4 in 18-49s, an 11-week high for the timeslot. But it shows worrisome viewership decline through the night.   'Voice' draws NBC's best rating since 2007 Timeslot debut averages a 6.6 in 18-49s, the night's top show, and boosts lead-out 'Smash' to a strong 3.8 in its debut at 10 p.m.   Early numbers: Third-best Super Bowl ever Averages a 47.8 metered-market household rating, just 0.1 behind last year's record-setting game. 'Voice' debut averages a 19.4.   'Bang' beats 'Idol' in shared timeslot again CBS sitcom averages a 5.4 to Fox reality show's 5.0 during the 8 p.m. half hour. But 'Idol' grows to a 5.8 in second half of show.   'Idol' slides 9 percent as Fox wins the night Hit singing show averages a 5.9 in 18-49s, down from a 6.5 last week, but Fox earns an easy victory with a 4.4 for the night   Stronger tune for Fox's musical comedy 'Glee' Michael Jackson tribute episode averages a 3.6 in 18-49s, best rating since October and leading the network to an easy nightly win   'Alcatraz' slides but Fox still wins Monday New drama averages a 2.7 in 18-49s, down 10 percent from last week and 18 percent from its debut. Fox takes the night with a 2.8.   Fox's 'Dynamite' implodes in second week New animated comedy averages a 2.1 in adults 18-49, less than half its debut, which was buoyed by big ratings for an NFL playoff game   Big gains for Fox's new drama 'The Finder' 'Bones' spinoff jumps 32 percent to a 2.9 in 18-49s for its third episode, airing behind 'Idol,' which slid 4 percent from last week   'Touch' posts season's second-best drama bow New Kiefer Sutherland show averages a 3.9 in 18-49s on Fox, airing behind 'Idol,' which slides 14 percent from last week's debut next >>