Comprehensible input · English

Comprehensible input in English

5,230 videos from 45 channels, each scored from its own subtitle track — vocabulary load and speaking pace. Filter to your level, then watch it on YouTube.

5,230
videos scored
45
channels
3,271 h
of material
988
made for learners

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 →

89/10011:22AUTOSonos Ace Headphones: You Had One Job!B2-C2 · ~10,000 words · very fastMarques Brownlee89/10019:40Why You're Thinking About Unemployment WrongB2-C2 · ~8,000 words · very fastJohnny Harris89/10055:38AUTOTackling the Biggest Unsolved Problems in Math with 3Blue1BrownB2-C2 · ~6,000 words · very fastStarTalk89/10017:13Octopus vs Underwater MazeB2-C1 · ~6,000 words · very fastMark Rober89/10019:58Everything About Irrigation Pivots (Farmers are Geniuses) - Smarter Every Day 278B2-C2 · ~6,000 words · very fastSmarterEveryDay89/1009:23Samsung Z Fold 8 (Wide) Impressions: Better Than I Thought!B2-C1 · ~5,000 words · very fastMarques Brownlee89/10018:35AUTOHow the US' Only District WorksB2-C2 · ~8,000 words · very fastWendover Productions89/10012:36How and why sauces 'break' (or don't)C1-C2 · ~15,000 words · fastAdam Ragusea89/10023:13This Old House | Systems, Security, and Surfaces (S32 E15) | FULL EPISODEB2-C2 · ~6,000 words · very fastThis Old House89/1008:44AUTOCoconut lime cornbread and updated regular cornbreadC1-C2 · ~10,000 words · very fastAdam Ragusea89/10016:22AUTOStarting a pizza place, Part 2: Sauce, cheese, thicknessB2-C2 · ~6,000 words · very fastAdam Ragusea89/10014:56How to Run Electrical Power to a Shed | Ask This Old HouseB2-C1 · ~5,000 words · very fastThis Old House89/10019:06Q&A with Grant, windy walk editionB2-C2 · ~8,000 words · very fast3Blue1Brown89/1007:23Google Pixel 8A Impressions: Just Get The 8!B2-C2 · ~7,000 words · very fastMarques Brownlee89/10026:56Egg Drop From SpaceB2-C1 · ~6,000 words · very fastMark Rober89/10010:20Nothing Phone 4b: They Can't Say It!B2-C2 · ~5,000 words · very fastMarques Brownlee89/1001:34:26AUTOMichael Mauboussin Master Class — Moats, Skill, Luck, Decision Making and a Whole Lot MoreB2-C1 · ~5,000 words · very fastAcquired89/10023:37I Tried The Best Steak in AmericaB2-C2 · ~5,000 words · very fastJoshua Weissman89/10021:11Zohran Mamdani on his first priorities as NYC mayor (Full video interview)B2-C1 · ~5,000 words · very fastVox89/10015:07Protect The Yacht, Keep It!B2-C1 · ~5,000 words · very fastMrBeast89/1009:10Samsung Galaxy S26/Ultra Impressions: 1 Crazy Display Feature!B2-C1 · ~6,000 words · very fastMarques Brownlee89/10019:12AUTOUS Coast Guard Rescue Swimmer Gear - Smarter Every Day 279B2-C1 · ~6,000 words · very fastSmarterEveryDay89/10021:28AUTOAmericans oppose data centers. We went to find out why | America, ActuallyB2-C1 · ~4,000 words · very fastVox89/10028:12I Tried Celebrities Favorite FoodsB2-C2 · ~5,000 words · very fastJoshua Weissman

English channels, ranked

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.

#ChannelLevel range (0–100)MedianVocabulary rangePaceVideosHours
1TED-Ed279150B2-C2medium19219 h
2National Geographic278957B2-C2medium6581 h
3TED228758B1-C2fast6916 h
4Essential Craftsman338763B1-C2fast13739 h
5Real Engineering478664C1-C2fast7630 h
6Technology Connections569067B2-C2fast8947 h
7Kurzgesagt – In a Nutshell138868B2-C2fast6013 h
8Veritasium489269B2-C2fast11856 h
9Lex Fridman278970B1-C1fast127377 h
10StarTalk409170B2-C2fast10998 h
11Acquired339171B2-C2fast86221 h
12Yes Theory288772B1-B2fast9048 h
13ColdFusion558672B2-C2fast11838 h
14Vox439072B2-C2fast9351 h
15First We Feast399772B1-C1fast12241 h
16Andrew Huberman459574B2-C2fast145238 h
17Practical Engineering598975B2-C2fast14241 h
18Johnny Harris499075B2-C2fast11762 h
19Wendover Productions529176B2-C2fast12947 h
20SciShow559676B2-C2fast19748 h
21Jimmy Kimmel Live368776B1-C1fast19742 h
22WIRED269177B1-C2fast7328 h
23Vanity Fair389178B1-C1fast9628 h
24The Diary Of A CEO389279B1-C2fast152316 h
25All-In Podcast459081B2-C2fast132143 h
26PowerfulJRE409081B1-C1very fast99269 h
27Matt Risinger559283B2-C2very fast14054 h
28Doug DeMuro659083B1-C2very fast141100 h
29The Tonight Show Starring Jimmy Fallon408984B1-C1very fast326 h
30Drew Binsky409785B1-C1very fast13272 h
31SmarterEveryDay599186B1-C2very fast5432 h
32Adam Ragusea249687B2-C2very fast18654 h
33Marques Brownlee539287B2-C2very fast12728 h
34MrBeast759487B1-B2very fast9234 h
35This Old House589488B1-C2very fast9046 h
36Mark Rober729589B2-C2very fast4315 h
37Joshua Weissman649690B2-C2very fast11745 h
383Blue1Brown809491B2-C2very fast5824 h

The vocabulary range is each channel’s own spread, not a single verdict: in three of every four of its videos the vocabulary starts at the lower level or above and stays at the upper one or below. Its top end tracks how far the rare words reach, so a channel devoted to one subject sits high on it without being hard to follow — the median score is the column that answers that.

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