What you should be viewing on the Internet and on screen: “The Real World” returns to roots; baby polar bear’s first steps; CES action cam for dogs.

Screen time

“The Real World” is still on the air? Guess so. “The Real World: Ex-plosion” premieres tonight as the series returns to its Bay Area roots — but now former couples are living in the house. … 10 p.m. EDT tonight, MTV.

Best of the day

CES has unveiled an action cam … for dogs? Check out this cool pic of a new harness prototype.

Hot video: Baby polar bear takes adorable first steps

After a shaky start at birth, a 2-month-old baby polar bear at the Toronto Zoo is making great progress, taking its first few steps.

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