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 →

86/10029:27The Amazing Engineering of Rescue Helicopters - Smarter Every Day 289B2-C2 · ~6,000 words · very fastSmarterEveryDay86/1008:19We Have Spent Millions of Dollars on Blue RosesB2-C2 · ~9,000 words · very fastSciShow86/10010:59Oppo Find X8 Ultra: The Bar's Been Raised!B2-C2 · ~8,000 words · very fastMarques Brownlee86/10023:32AUTOYouTube is Already 20% AI SlopB2-C2 · ~8,000 words · very fastColdFusion86/10012:21Why Things Fall Off CranesB2-C1 · ~7,000 words · very fastPractical Engineering86/10048:41How Firefly is Revolutionizing the Logistics of Spaceflight | Full DocumentaryB2-C2 · ~8,000 words · very fastReal Engineering86/10011:34Robot Piano Catches Fire Playing Rush E (World’s Hardest Song)B2-C1 · ~7,000 words · very fastMark Rober86/10055:31The PROBLEM with Capitalism - Smarter Every Day 316B2-C1 · ~5,000 words · very fastSmarterEveryDay86/10026:57Is spider web really stronger than steel?B2-C2 · ~9,000 words · very fastVeritasium86/10026:56Why Groceries Are SO Expensive NowB2-C1 · ~6,000 words · very fastJohnny Harris87/10022:07I Blew Up A 24 Story BuildingB1-B2 · ~4,000 words · very fastMark Rober87/10018:22WWDC 2025 Impressions: Liquid Glass!B2-C2 · ~7,000 words · very fastMarques Brownlee87/10036:18Professor Answers China Questions | Tech Support | WIREDB2-C2 · ~8,000 words · very fastWIRED87/10010:10PowerBeats Pro 2 Review: Still Better than AirPods!?B2-C1 · ~6,000 words · very fastMarques Brownlee87/10014:39I Tried the Weirdest “Open” HeadphonesB1-C1 · ~5,000 words · very fastMarques Brownlee87/10021:23AUTOWhy most of our money isn't realB1-B2 · ~4,000 words · very fastJohnny Harris87/10013:29AUTOMrBeast Answers The Web's Most Searched Questions | WIREDB1-B2 · ~3,000 words · very fastWIRED87/10014:20iOS 26 Hands-On: Liquid Glass!B2-C2 · ~7,000 words · very fastMarques Brownlee87/10018:54Can You Fool A Self Driving Car?B1-B2 · ~4,000 words · very fastMark Rober87/10016:43F1 Chief Mechanic Answers F1 Car Questions | Tech Support | WIREDB1-B2 · ~4,000 words · very fastWIRED87/1008:46Apple Watch Series 10 Review: This is It?B1-C2 · ~6,000 words · very fastMarques Brownlee87/10014:53How Do You Steer a Drill Below The Earth?C1-C2 · ~12,000 words · fastPractical Engineering87/10010:42The History of Not Forgotten - Smarter Every Day 269B1-B2 · ~3,000 words · very fastSmarterEveryDay87/10010:22Are soccer players the most fit athletes on the planet?B1-C1 · ~6,000 words · very fastVox

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 →