Comprehensible input · English
Comprehensible input in English
1,777 videos from 17 channels, each scored from its own subtitle track — vocabulary load and speaking pace. Filter to your level, then watch it on YouTube.
1,777
videos scored
17
channels
1,435 h
of material
591
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 →
ContentAnyMade for learnersReal-world contentScience & ideas (501)Podcasts (378)Entertainment (182)Talk shows (126)
27/10047:12Noam Chomsky: Putin, Ukraine, China, and Nuclear War | Lex Fridman Podcast #316B2-C2 · ~8,000 words · slowLex Fridman
27/10047:26Is Escape from Earth Possible? | One Strange Rock Ft. Will Smith (Full Episode) | Nat GeoB2-C1 · ~5,000 words · slowNational Geographic
32/10044:18Who was Genghis Khan? (Full Episode) | Secret History of the Mongols | National GeographicB2-C2 · ~8,000 words · slowNational Geographic
34/10046:11The South Pole (Full Episode) | Pole to Pole with Will Smith | National GeographicB1-B2 · ~4,000 words · mediumNational Geographic
35/10044:24Chilling Mystery of the Silver Mask (Full Episode) | Kingdom of Mummies | National GeographicB2-C2 · ~7,000 words · mediumNational Geographic
35/1003:20:00Serhii Plokhy: History of Ukraine, Russia, Soviet Union, KGB, Nazis & War | Lex Fridman Podcast #415B2-C1 · ~6,000 words · mediumLex Fridman
37/10044:24Excavating the Business of Death (Full Episode) | Kingdom of the Mummies | Nat GeoB2-C2 · ~10,000 words · mediumNational Geographic
38/10037:21Why Does Japan Have 9,000,000 Abandoned Homes?B1-B2 · ~4,000 words · mediumYes Theory
38/10031:54Exploring Scotland's Forgotten Castles with GiantsB1-B2 · ~3,000 words · mediumYes Theory
38/1002:18:10AUTOThe No.1 Brain Doctor: This Parenting Mistake Ruins Your Kids Brain & Alcohol Will Ruin Yours!B2-C1 · ~5,000 words · mediumThe Diary Of A CEO
39/1002:12:20What have Archaeologists Discovered? | Lost Treasures of Rome MEGA Episode | National GeographicB2-C2 · ~9,000 words · mediumNational Geographic
39/1001:36:11AUTORay Kurzweil: Singularity, Superintelligence, and Immortality | Lex Fridman Podcast #321B2-C1 · ~5,000 words · mediumLex Fridman
40/1002:28:57AUTOShaolin Warrior Master: Hidden Epidemic Nobody Talks About! This Modern Habit Is Killing Millions!B1-B2 · ~3,000 words · mediumThe Diary Of A CEO
40/1002:20:44AUTOJoe Rogan Experience #2343 - Joe PistoneB1-B2 · ~2,000 words · mediumPowerfulJRE
41/10044:24Ramses the Great: Empire Builder (Full Episode) | Lost Treasures of Egypt | National GeographicB2-C2 · ~9,000 words · mediumNational Geographic
41/10046:17Free Climbing in Greenland (Full Episode) | Arctic Ascent with Alex Honnold | National GeographicB1-C1 · ~4,000 words · mediumNational Geographic
41/1001:24:10Ocean with David Attenborough (Full Documentary) | World Ocean Day Special | National GeographicB2-C2 · ~8,000 words · mediumNational Geographic
42/1002:56:28New Discoveries Rewrite Maya History | Rise and Fall of the Maya MEGA Episode | National GeographicB2-C2 · ~8,000 words · mediumNational Geographic
42/10031:2350 Hours on Europe's Most Dangerous IslandB1-B2 · ~4,000 words · mediumYes Theory
42/1004:34:10Pavel Durov: Telegram, Freedom, Censorship, Money, Power & Human Nature | Lex Fridman Podcast #482B2-C1 · ~6,000 words · mediumLex Fridman
42/1003:31:57Vejas Liulevicius: Communism, Marxism, Nazism, Stalin, Mao, and Hitler | Lex Fridman Podcast #444B2-C2 · ~10,000 words · mediumLex Fridman
43/10037:01BTS Surprises Fans, Talks ARIRANG and Performs "SWIM" and "2.0" at Guggenheim New YorkB1-B2 · ~3,000 words · mediumThe Tonight Show Starring Jimmy Fallon
43/1002:56:25Exploring Ancient Egypt's Greatest Mysteries | Lost Treasure of Egypt MEGA Episode | Nat GeoB2-C2 · ~8,000 words · mediumNational Geographic
43/1003:40:26Ancient Egypt's Royal Secrets Revealed | Lost Treasures of Egypt | MEGA EPISODE | Nat GeoB2-C2 · ~8,000 words · mediumNational GeographicEnglish 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.
| # | Channel | Level range (0–100) | Median | Typical band | Pace | Videos | Hours |
|---|---|---|---|---|---|---|---|
| 1 | TED-Ed | 27–91 | 50 | C1-C2 | medium | 191 | 19 h |
| 2 | National Geographic | 27–89 | 57 | B2-C2 | medium | 65 | 81 h |
| 3 | TED | 22–87 | 58 | B2-C2 | fast | 69 | 16 h |
| 4 | Kurzgesagt – In a Nutshell | 13–88 | 68 | B2-C2 | fast | 60 | 13 h |
| 5 | Lex Fridman | 27–89 | 70 | B2-C1 | fast | 127 | 377 h |
| 6 | Yes Theory | 28–87 | 72 | B1-B2 | fast | 90 | 48 h |
| 7 | WIRED | 26–91 | 77 | B2-C2 | fast | 73 | 28 h |
| 8 | Vanity Fair | 38–91 | 78 | B1-B2 | fast | 96 | 28 h |
| 9 | The Diary Of A CEO | 38–92 | 79 | B1-B2 | fast | 152 | 316 h |
| 10 | PowerfulJRE | 40–90 | 81 | B1-C1 | very fast | 99 | 269 h |
| 11 | The Tonight Show Starring Jimmy Fallon | 40–89 | 84 | B1-B2 | very fast | 30 | 6 h |
| 12 | MrBeast | 75–94 | 87 | B1-B2 | very fast | 92 | 34 h |
| 13 | Mark Rober | 72–95 | 89 | B2-C1 | very fast | 43 | 15 h |
Watching is the other halfYouTube gives you one subtitle line, in one language. Linglass puts English and your own language on screen together, and turns any word you tap into a flashcard.Add to Chrome — free