7-Day Screen-Free Hour Streak
Spend one hour each evening away from the TV and other screens, doing something else you enjoy. Check in daily.
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Tech · Facts & stats · iChallenge network
Daily facts and stats about television, plus real challenges to put them to work.
What was the aspect ratio of standard-definition TV before widescreen?
Classic standard-definition TV screens were 4 units wide by 3 tall, almost square.

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Spend one hour each evening away from the TV and other screens, doing something else you enjoy. Check in daily.
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Look closely at a screen with a magnifying glass and post a short write-up describing the colored dots you see.
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Watch one short educational program each day and write one fact you learned. Check in once a day.
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Make a simple timeline of five key steps in the history of television and post a link or write-up.
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Live counts from TelevisionChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Fund a prize on TelevisionChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
Challenges are habit-based community games, not medical advice. Always consult a professional for health decisions.
Free to play. Scores and streaks are tracked on the leaderboard.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.