Tomorrow, Thursday, Alan Alda will be on NBC's Late Night with Conan O'Brien and the syndicated talk show Live with Regis and Kelly according to Interbridge's lineups page.
Alan Alda will be a guest on the Diane Rehm radio show today (Tuesday), starting at 11AM ET.
He will also be on Hardball with Chris Matthews later tonight on MSNBC.
"West Wing" writer Lawrence O'Donnell will be on Craig Ferguson's Late Late Show on CBS. (Thanks, Cyndy C, for those last two)