I think the main difference in content between Netflix and Hulu Plus is that Hulu Plus gives you access to episodes from the current season (and often the full season beyond the most recent ones available on regular Hulu.)

Also, the Daily Show isn't a great example since episodes deal with news so I can't imagine many people buying up old episodes. (And you can get free episodes going back a month at http://www.thedailyshow.com/)

Edit: The Daily Show is actually an okay example now that I realize that you wanted Hulu+ for the non-desktop experience rather than for back episodes.