Tiny take-along TVs

The changeover from analog to digital broadcasting has made older portable TVs obsolete. But while major makers have been slow to bring portable digital TVs to market, a host of smaller companies are stepping in to fill the breach. Our favorite among the current crop of portable digital TVs is the Eviant T7. Though it's not the best choice if you want a battery-powered TV mainly for emergencies, the T7 is stylish, easy-to-use and has a terrific digital tuner.

That last point is far more important than it sounds. Lots of buyers of portable digital TVs have been shocked to learn that where their old analog portable TV pulled in lots of stations, a digital portable TV might pull in only a few -- or even none at all. We explain why in our new report on portable TVs, and tell you what you can do to avoid disappointment.