Apps that enhance the TV viewing experience will be absolutely huge. As mentioned in the article, the functionality to find out more about what you're watching

Apps that enhance the TV viewing experience will be absolutely huge. As mentioned in the article, the functionality to find out more about what you're watching will be popular. Watching an advert and being able to click to be sent info/find out more will become widespread very quickly. Instant polling on news programs ("Tax cuts good or bad? Click your remote now!") or entertainment programs ("Do you like Biebers new haircut?") will be fun. "Social" TV services will emerge, allowing you to share with your friends what you're currently watching, and for interested friends to tune in to the same channel. People will publish lists of recommended shows, and you'll be able to automatically follow their recommendations and have your PVR record those shows, or your set top box will go find the on-demand versions of those shows... I was working for interactive TV companies in the late 90's/early 00's - we were about 15 years too early it would seem. A lot of concepts have been really well fleshed out and are ready to go. I'm excited that it seems as though it is finally the right time for this stuff to go mainstream. (And go look at the UK and their 'red button' services. They're a lot further ahead than the US with this stuff.)