All those shows are either gone or transformed and for me late night TV is more likely to be The Daily Show and something off the DVR or, worst case (but not too bad) Law and Order, Cold Case, NCIS, Closer, Leverage etc. reruns. Mostly though I read at the same time. Late night really doesn't feel like home anymore. Even so, I've been riveted by the Leno-Conan battle and not for the reason you might think. For me, it's just another symptom of the Generation Gap - this time moving the other direction from the way it was when I was younger.
For many of us, this is simple: Jay Leno is old and grouchy (well not as old as I am but still...) and O'Brien younger, more creative and definitely holder of the "younger, cooler, hipper" mandate. (Yes I know there's David Letterman (and George Lopez) but for now let's think about NBC.)