What you should be viewing on the Internet and on screen: “The Million Second Quiz” premieres; Miley Cyrus releases “Wrecking Ball;” Christian Grey talks “50 Shades.”

Screen time

Ryan Seacrest debuts as host of a new TV gameshow, “The Million Second Quiz,” where contestants answer rapid-fire trivia questions and head-to-head challenges. … 8 p.m. EDT tonight, NBC.

Worst of the day

Miley Cyrus has a music video out for her single “Wrecking Ball” off new album “Bangerz.” Watch her swing around on a wrecking ball and act like a wreck, in general.

Hot video: New Christian Grey on '50 Shades' fan reactions

Charlie Hunnam talks about being cast in “Fifty Shades Of Grey.”

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