Digital TV for the small screen

Now that most of us have our digital big-screens TVs, it's time to go the other direction: Mobile digital TV means small is beautiful, and maybe more importantly, ready to go when and where you do.

You may wind up watching it on a 7-inch dedicated screen, like the one LG Electronics will exhibit at the Consumer Electronics Show this week. Or, you might do your viewing on a netbook, like the 10.1-inch screen Mini 10 netbook with a built-in mobile DTV receiver that Dell demonstrates Tuesday at CES, which should be available by the holiday season.

There's also a nifty device known as Tivit, already used in Japan and the size of a deck cards, that is as a wireless TV receiver for smartphones with Wi-Fi, such as the iPhone (as well as the iPod Touch) and certain models of BlackBerrys. It will cost around $120, and is due out this spring.

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