“I’m a bad man. I’m a very bad man.” Kenny Powers’ road to redemption came to an end on Sunday’s Eastbound and Down finale. After a stellar fourth season that found Danny McBride’s MLB has-been unexpectedly making a living through his bullying and bullshitting skills as TV sportscaster, Kenny finally discovered that men — or at least some men — just can’t have it all. “I was never unhappy with you guys,” he admits to his ex-wife about the family he broke apart. “I was unhappy with myself.” Thus another manchild bites the dust. Eastbound and Down couldn’t have ended any other way. After last week’s episode [spoilers], when Stevie was on the verge of putting a bullet through his brain for not being able to buy Christmas presents for his kids, the show’s bathos graduated to genuine, compelling pathos. (“Trying to kill myself was the best thing I ever did,” Stevie decides later in the company of his ever-doting wife.) Kenny has a better head on his shoulders than Stevie does, but an ending that finds “Kenneth Powers” giving up on his humanity to become sadistic kajillionaire Ronny Thelman’s (Sacha Baron Cohen) mulleted pit bull might have been too dispiriting a conclusion.