I'll give you an example. A friend was over a few days ago and wanted to watch a particular episode of Community. One quick google search and we found the name

I'll give you an example. A friend was over a few days ago and wanted to watch a particular episode of Community. One quick google search and we found the name of the episode. One quick search on iTunes, a couple clicks and it's downloading. A moment later and iTunes suggests that we can start watching immediately while it finishes downloading. No worrying about when it shows, or if I'd remembered to set something to record it or even managing local storage. Also, once you've bought a tv show it looks like iTunes now lets you redownload it whenever you want. There's still some work to be done to bridge that experience onto the TV smoothly, but the experience is already much better than any cable experience for me.