http://tvline.com/2015/04/06/big-bang-theory-christine-baranski-laurie-metcalf-season-8-episode-23/

They'll reprise their respective roles as Leonard and Sheldon's moms in the season's penultimate episode.

cool beans...they are both a hoot and a half:)....thankies for the heads up...

YES !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!