RIP, Marian Seldes.  I saw her on Broadway, Off-Broadway, and in regional theaters, and she was consistently strong and amazing to watch.  She was a brilliant actress and teacher, and a treasure of the American stage.  The performances on CBSRMT unfortunately only show a glimmer of what she was capable of, often don't flatter her, and show her very histrionic side.  Don't let that mislead you.  She was one of the best.