"Nashville" (ABC, Wednesdays). After a first season that seemed to run increasingly away from all the things that made this show special -- most of them rooted in music, and a convincing portrayal of its making and selling -- and toward the kind of incredible drama better left to the same network's "Scandal" and "Revenge," "Nashville," for the moment at least, is back on track. After a busy second-season opener that raised and took care of various strands of old business, the story feels life-sized and believable. There are signs of craziness ahead, but it is not currently troubling its remarkable leads: Connie Britton's Rayna James (country classic), Hayden Panettiere as Juliette Barnes (glam, looking to get real), and Clare Bowen's Scarlett O'Connor (young old soul). Panettiere, especially, was asked to act out extravagantly in the first season; but she is getting to play human again, and Britton and Bowen seem incapable of ever being anything less than real, whatever they're given to do or say. And Lennon Stella, as Rayna's older daughter Maddie, seems ready to make that trio a quartet. (The men have their part to play, but they are really secondary characters.) There's a new boss in town this season (Jeff Fordham), whose eyes are dollar signs, with a new hot-young singer (Aubrey Peeples), who is giving Juliette a taste of what Juliette gave Rayna, all-about-Eve-wise. Y'all come back now, hear?