Apple's iTunes continues to delve into new territory.  The web's most popular destination for legally downloadable music, and now video content has taken a step further toward by offering new content on a daily basis.  Hot off of his Oscars' hosting debut, John Stewart's ever popular nightly Daily Show, will be available for download not only as individual episodes ($1.99), but through a new iTunes feature called "Multi-Pass" as a month long subscription services.  The package, which will retail for $9.99, includes a total of 16 episodes and is currently offered for Stewart's program, as well as The Colbert Report, of which he is also an executive producer.  This is probably just the first sign of Apple's foray into daily content and a subscription-based model.