“Lie to Me” (9 p.m., Fox): In the Season 2 premiere of “Lie to Me,” the

“Lie to Me” (9 p.m., Fox): In the Season 2 premiere of “Lie to Me,” the Lightman Group investigates a case where a woman with multiple personalities could be a witness to a murder — or the actual killer.

“Trauma” (9 p.m., NBC): The new medical series, “Trauma,” is like “ER” on crack. In tonight’s opener, San Francisco paramedics race from one emergency to another as chaos and carnage abound.