With
Kate Walsh announcing this week that she's leaving "Private Practice"after Season 6,
Shonda Rhimes' medical drama may be on its way out. However, if "
Private Practice" were to continue without
Kate Walsh, it wouldn't be the first time that a TV show stayed on air without one of its stars."
Private Practice" fans might be able to find hope in the "Grey's Anatomy" spin-off's future by looking at "ER," "The Office" and other notable shows ...