SEASON PREMIERE: Part 2 of 2. Last night’s episode established the rapport, and tensions, among this year’s quartet of judges: veterans Blake Shelton and Adam Levine, and relative newbies Kelly Clarkson and Jennifer Hudson. Of the four, former American Idol winner’s enthusiasm and cockiness plays well, while Hudson’s wobbles between playful and egotistical. But overall, it’s a comfortable chemistry, and these early “Blind Audition Rounds” are among the show’s most entertaining – and surprising.