TV's Double Vision, When 1 Screen Isn't Enough

As a kid, I dreamed of having a telephone that was plugged into my family’s TV and would let me ring up whoever I was watching. With this special phone, I could reach my favorite TV stars, introduce myself and talk to them about their shows.

It would’ve been so great. But I always knew it was an impossible dream.

Flash forward a few decades. On a Thursday night last month, Kerry Washington, the star of such films as “Ray” and “The Last King of Scotland,” was live-tweeting answers to questions tweeted from viewers

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