01 / 17TED-Ed≈ approximate level C14:13–4:18 .
02 / 17Lex Clips≈ approximate level A27:27–7:35
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03 / 17The Late Show≈ approximate level A25:39–5:42
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04 / 17The Economist≈ approximate level C10:04–0:09
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05 / 17CNBC Make It≈ approximate level A24:01–4:06
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06 / 17CNBC Make It≈ approximate level B20:56–1:04
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07 / 17The Late Show≈ approximate level C12:08–2:14
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08 / 17BBC Ideas≈ approximate level B10:59–1:04
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09 / 17Big Think≈ approximate level A29:21–9:24
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10 / 17TED-Ed≈ approximate level B24:41–4:54
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11 / 17WIRED≈ approximate level B111:10–11:18
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12 / 17TED-Ed≈ approximate level B24:20–4:31
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13 / 17Lex Clips≈ approximate level B16:45–6:55
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14 / 17WIRED≈ approximate level C18:57–9:04
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15 / 17CNBC Make It≈ approximate level C10:33–0:42
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16 / 17CNBC Make It≈ approximate level C10:05–0:11
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17 / 17PBS NewsHour≈ approximate level B20:29–0:39
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