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 ...