Premise:
"and so most of the people collect Roman with a few collecting Greek so every now and then we have a program so i've picked up a bit"
Hypothesis: Roman and Greek are collected usually because they are worth more than Egyptians ones.

it is not possible to tell

Premise:
"to just to see all these things that you can can see on television now and can read about that ten years ago we didn't have this kind of information i mean we didn't know"
Hypothesis: Ten days ago we got a new TV.

no

Premise:
"Health-food promoters often cite traditional use by Native Americans or Chinese herbalists as evidence."
Hypothesis: Chinese and Native American herbalist practices are sometimes co-opted by health-food promoters to sell product.
yes