01 / 21TED≈ approximate level A24:06–4:11 ’s .
02 / 21The School of Life≈ approximate level C10:36–0:40
.
03 / 21BBC Ideas≈ approximate level A21:05–1:10
, .
04 / 21PBS NewsHour≈ approximate level A21:16–1:21
, -.
05 / 21BBC Ideas≈ approximate level C12:59–3:04
, .
06 / 21WIRED≈ approximate level C14:20–4:24
, .
07 / 21CNBC Make It≈ approximate level B15:54–5:57
.
08 / 21BBC Earth≈ approximate level B11:45–1:50
, .
09 / 21StoryCorps≈ approximate level B21:30–1:34
’s .
10 / 21TED≈ approximate level C15:19–5:24
.
11 / 21BBC Ideas≈ approximate level A21:03–1:05
.
12 / 21PBS NewsHour≈ approximate level B11:19–1:28
: -- .
13 / 21TED-Ed≈ approximate level B23:22–3:28
, , .
14 / 21Vanity Fair≈ approximate level C13:35–3:40
, .
15 / 21The Economist≈ approximate level B12:13–2:23
% 's .
16 / 21TED-Ed≈ approximate level C10:48–1:05
, ’s ; ; , , .
17 / 21CrashCourse≈ approximate level C12:41–2:48
, ’s .
18 / 21PBS NewsHour≈ approximate level C13:29–3:40
: , , , , .
19 / 21The Late Show≈ approximate level C16:49–6:59
, .
20 / 21CrashCourse≈ approximate level B210:15–10:26
, — — , , .
21 / 21TED≈ approximate level C12:43–2:51
, , , .