PRIVATE PRACTICE - "Best Laid Plans" - Sam and Naomi are stunned by Maya's shocking announcement, and Naomi's irrational response leaves Sam to pick up the pieces, as Pete challenges Fife on a patient with a cutting edge bionic arm, on "Private Practice," THURSDAY, JANUARY 21 (10:01-11:00 p.m., ET) on the ABC Television Network. (ABC/MICHAEL DESMOND) AUDRA McDONALD, MICHAEL PATRICK THORNTON