Tuesday, February 17, 2009
“American Idol” (8 p.m., Fox): Folks in the top 36 are up for elimination.
“The Mentalist” (9 p.m., CBS): Yet another reason not to hang out with rich people: On the “Mentalist,” the prominent queen bee of a country club is fatally poisoned during a cocktail party. Of course, lots of dirty little secrets surface in the ensuing probe.