Three things to know:

Scrolling through your newsfeed and noticing something… eerie? Facebook can be an echo chamber. Professor Cass Sunstein tells us how social media has contributed to groupthink.

Which channel has no ratings, no stars, and no commercials, and wants to keep it that way? We talk with a cable network founder about the secret to success, even when nobody's watching.

Our president may have been ubiquitous on Twitter for the past few years. But his first love will always be TV. And it loves him right back. IndieWire executive editor Michael Schneider explains.