Best Bets on TV tonight

“FRINGE” (9 p.m., Fox): Fans of TV’s mind-blowing creep fest have reason to celebrate. Not only does the show return from a two-month hiatus this week, it recently was renewed for a third season. That means we’ll be treated to even more terrifying occurrences and macabre crimes. In the “spring premiere” — the first of eight new episodes — Walter (John Noble) flashes back to 1985 while explaining Peter’s (Joshua Jackson) otherworldly origins to Olivia (Anna Torv). Far out.

“Bones” (8 p.m., Fox): “Lost” did it, why can’t “Bones”? For its milestone 100th episode, the quirky crime series is going back in time. Yes, fans will learn how Booth and Brennan met — and witness their very first clash.

TV Tonight, B6