HEROES REBORN
NBC, 9:00 p.m. ET
The returning old heroes are mixing, a little more, with the newly established fresh ones, but their chemistry, like this rebooted series, has yet to gel. But there are two main plots continuing to take root: One in which veteran Heroes character Luke (new co-star Zachary Levi, pictured) hunts for many things, including keys to his own latent powers.