"House of Cards" and "Roseanne" don't have much in common, but their new seasons both faced an unenviable situation -- trying to forge ahead without the central character, whose departure was triggered by off-screen controversy.

"House of Cards" and "Roseanne" don't have much in common, but their new seasons both faced an unenviable situation -- trying to forge ahead without the central character, whose departure was triggered by off-screen controversy.