At the risk of veering this thread off topic, I have to say I find Sondheim's take on TV stars pretty irksome. He's probably right that there are few, if any, stars known predominately for Broadway who draw the general public on their name alone. But he is so condescending and flippant toward people who have made their name on TV. Patti was quite right to point out that a TV/film star on Broadway could have the skills necessary to do perform well, given the right material.
Not only that, but consider how many current TV/film stars got their start onstage, or have an proven track-record onstage, or have theatre training, or maybe even are just talented performers who *GASP* are able to do both naturally. We constantly see TV and film actors produce extraordinary onstage performances. There are truly too many examples of these to count, yet Sondheim brushes TV fame off like it's nothing but shallow, artless, money-grabbing.