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)
13/1001:00We Are Making a VIDEO GAMEC1-C2 · ~9,000 words · slowKurzgesagt – In a Nutshell
22/10017:50Are We Heading Toward World War III? | Heni Ozi Cukier | TEDB2-C2 · ~9,000 words · slowTED
26/1008:45TXT Answer The Web's Most Searched Questions | WIREDB2-C2 · ~6,000 words · slowWIRED
27/1007:09The biggest myths about Neanderthals - Bruce HardyC1-C2 · ~17,000 words · slowTED-Ed
27/10047:26Is Escape from Earth Possible? | One Strange Rock Ft. Will Smith (Full Episode) | Nat GeoB2-C1 · ~5,000 words · slowNational Geographic
29/1007:40Ugly History: The Armenian Genocide - Ümit KurtC1-C2 · ~12,000 words · slowTED-Ed
30/1006:45What the oil industry doesn’t want you to know - Stephanie Honchell SmithC1-C2 · ~11,000 words · slowTED-Ed
31/1006:41What if your president was chosen via lottery? - Michael VazquezB2-C2 · ~11,000 words · slowTED-Ed
32/10044:18Who was Genghis Khan? (Full Episode) | Secret History of the Mongols | National GeographicB2-C2 · ~8,000 words · slowNational Geographic
32/1006:23Why is it so hard to get rid of bed bugs? - Gale E. RidgeC1-C2 · ~13,000 words · slowTED-Ed
32/1006:49The incredible engineering of Venice - Stephanie H. SmithC1-C2 · ~15,000 words · slowTED-Ed
33/1006:29What are truffles, and why are they so expensive? - Carolyn BeansC1-C2 · ~13,000 words · slowTED-Ed
33/1007:05Edgar Allan Poe's story of the Red Death - Iseult GillespieC1-C2 · ~17,000 words · slowTED-Ed
33/1006:33Why was bloodletting so popular? - Stephanie Honchell SmithC1-C2 · ~20,000 words · slowTED-Ed
33/1006:09When did we start using passports? - Kristin SurakB2-C2 · ~11,000 words · slowTED-Ed
33/1006:47How do snakes swallow animals so much bigger than they are? - Niko ZlotnikC1-C2 · ~14,000 words · slowTED-Ed
34/1006:12Psychedelics, mind control, radiation-eating: The secret superpowers of fungi - Max G. LevyC1-C2 · ~19,000 words · slowTED-Ed
34/1006:05How does extreme heat affect your body? - Carolyn BeansB2-C1 · ~9,000 words · slowTED-Ed
34/1006:093 surprising ways microplastics can enter your bodyC1-C2 · ~12,000 words · slowTED-Ed
34/1006:09The haunting history of the Paris Catacombs - Stephanie H. SmithC1-C2 · ~13,000 words · slowTED-Ed
34/10046:11The South Pole (Full Episode) | Pole to Pole with Will Smith | National GeographicB1-B2 · ~4,000 words · mediumNational Geographic
35/1006:11Scientists still don't know the answer to this infamous question - Charles Wallace & Dan KwartlerB2-C2 · ~8,000 words · mediumTED-Ed
35/1006:31Does hypnosis ever actually work? - Devin TerhuneC1-C2 · ~13,000 words · slowTED-Ed
35/10044:24Chilling Mystery of the Silver Mask (Full Episode) | Kingdom of Mummies | National GeographicB2-C2 · ~7,000 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 |
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