01 / 11Big Think≈ approximate level B11:34–1:38 .
02 / 11TED≈ approximate level B23:59–4:02
.
03 / 11Big Think≈ approximate level C11:27–1:33
.
04 / 11PBS NewsHour≈ approximate level A20:49–0:54
.
05 / 11BBC Ideas≈ approximate level A21:34–1:38
.
06 / 11TED≈ approximate level C14:32–4:39
, , -.
07 / 11CrashCourse≈ approximate level B26:49–6:55
, , .
08 / 11StoryCorps≈ approximate level B20:59–1:03
, .
09 / 11The Daily Show≈ approximate level B22:16–2:23
, - .
10 / 11CrashCourse≈ approximate level B21:25–1:32
-- .
11 / 11CNBC Make It≈ approximate level B24:21–4:28
.