Take a look at some of the most prominent claims made on the showroom floors of big-box retailers and learn the realities, along with tips and details for buying an HDTV, selecting the best content and more.

Cathy Hinz is a mom and a grandmother. And until last summer, she wasn’t much of a gamer. But then she got hooked on “FarmVille,” the Facebook game that draws 80 million monthly players. She plays faithfully, daily, surpassing her daughters and her grandkids. She’s a power user.

It’s that time of year again, when most Americans lose an hour’s sleep setting their clocks ahead. Here are answers to your questions about the time switch - and about sleep.

So far, Americans have pledged $100,000 in donations via cell phone for victims of Chile's earthquake compared to more than $43 million raised that way for victims of Haiti's Jan. 12 quake.

A new study reports that the top of the gigantic conveyor belt of plasma moving inside the sun has been running at record-high speeds for the past five years.

We may never know why runaway Toyotas suddenly seem to be everywhere. The scariest possibility, however, is that faulty computers are driving some victims to their deaths with frightening randomness.

Dogs emit two primary growls: one for play and one for all other times when dogs are angry, a study confirms.

Apple began taking orders online Friday for its new iPad tablet computer, with delivery scheduled for April 3, the same day the iPad goes on sale in stores.

California-based SpaceX says it has conducted a successful engine test for its Falcon 9 launch vehicle, a key milestone on the way to the inaugural launch of a rocket that could one day ferry astronauts to the International Space Station.

Science editor Alan Boyle's Weblog: Pluto and the other small fry of the solar system are getting their due 80 years after the dwarf planet's discovery was announced to the world.

Comparison of images of Martian channels to lava flows in Hawaii indicates that lava, not water, may have been the creative force behind at least some of the channels, according to a NASA researcher.