Mostly in Dutch, but the English part and body language might still be interesting:
http://www.uitzendinggemist.nl/afleveringen/1392216

Summary:
In this program they try to find out what the brown lumps in Lipton tea are. (normal and green tea)
They visit tea sommelier, a flavorist and a big blender (that part is in English). And of course they try to contact Lipton. And fail. In the end they go into a lab and discover that the lumps are mostly sugar.

The episode gives shows some parts of the world behind tea marketing.