01 / 8TED≈ niveau approximatifC15:07–5:13 , , .
02 / 8TED≈ niveau approximatifB11:35–1:42
.
03 / 8PBS NewsHour≈ niveau approximatifB20:05–0:15
's , , , .
04 / 8Sprouts≈ niveau approximatifC10:02–0:14
, .
05 / 8PBS NewsHour≈ niveau approximatifB21:21–1:32
, , , .
06 / 8TED≈ niveau approximatifB20:22–0:33
, .
07 / 8Big Think≈ niveau approximatifB28:22–8:33
, , , , , , , , ?
08 / 8Big Think≈ niveau approximatifC111:02–11:12
, , , , , , .