Comprehensible input in English

Find something to watch

The number on each thumbnail is its difficulty score out of 100: mostly speaking pace, partly vocabulary load. How it is measured →

75/10011:29You Don’t Need A Uterus to Get A Uterine DiseaseC1-C2 · ~19,000 words · fastSciShow75/10023:16Which Power Plant Does My Electricity Come From?B2-C2 · ~8,000 words · fastPractical Engineering75/10016:50AUTOGovernments Can Suddenly Shut Down Your Internet - Here's WhyB2-C2 · ~8,000 words · fastColdFusion75/10020:48Why Everyone Suddenly Wants GreenlandB2-C1 · ~6,000 words · fastJohnny Harris75/10010:30Shingles Vaccines Prevent DementiaC1-C2 · ~12,000 words · fastSciShow75/10018:53AUTOHow Self Storage Consumed AmericaB2-C2 · ~10,000 words · fastWendover Productions75/10027:20AUTOWe Can’t Afford Groceries, Yet Billionare Wealth is ExplodingB2-C2 · ~8,000 words · fastColdFusion75/10015:52Why Engineers Can't Control RiversC1-C2 · ~14,000 words · fastPractical Engineering75/10018:40Power outlets are topsy turvy - but does it matter?B2-C2 · ~8,000 words · fastTechnology Connections75/10019:11How the US Stole Puerto Rico, MappedB2-C1 · ~7,000 words · fastJohnny Harris75/1009:20The banana is under threatB2-C2 · ~8,000 words · fastVox75/10034:49AUTOThe truth about fatherhood | The Gray AreaB1-C1 · ~5,000 words · fastVox76/10016:226 Places with Weird Human MutationsC1-C2 · ~10,000 words · fastSciShow76/1008:49Why Is This Persian Silver Hoard Buried in Yorkshire?B2-C2 · ~10,000 words · fastSciShow76/10028:17Why People Think The Government Killed JFKB2-C2 · ~6,000 words · fastJohnny Harris76/10036:25Every Eye In The Animal Kingdom | WIREDC1-C2 · ~12,000 words · fastWIRED76/10021:29AUTOWhy American Airlines Stopped Making MoneyB2-C2 · ~10,000 words · fastWendover Productions76/10048:46Oligarchy is worse than you thinkB2-C2 · ~6,000 words · fastJohnny Harris76/10010:25What is Storm Surge?B2-C2 · ~11,000 words · fastPractical Engineering76/1004:40How exactly do inhalers work? - Anna RothschildC1-C2 · ~16,000 words · fastTED-Ed76/10020:44We Made A Giant Zipper To Explain How It WorksB2-C2 · ~7,000 words · fastVeritasium76/10034:42The Perfect Battery Material Is DangerousC1-C2 · ~13,000 words · fastVeritasium76/1009:43How Coastal Erosion WorksC1-C2 · ~15,000 words · fastPractical Engineering76/10021:50The Battle Over NYC Congestion PricingB2-C2 · ~9,000 words · fastWendover Productions

Which English channel to start with

Ranked by median difficulty, easiest first. The bar is a range, not a label — a channel typically spans a wide stretch of the scale, so one level would be false for its own hardest videos.

6 of these 7 channels carry the same vocabulary band (B1-B2), and their scores still run from 0 to 88. That gap is pace: what separates the easiest of these channels from the hardest is how fast people talk, not which words they use. How that is measured →