This first clip is Mr Randi explaining how the consumers have been duped by corporations selling fake medicine. At the end of makes his challenge to the homeopathy community, to put together an experiment that shows homeopathy working by its proposed mechanisms, supervised by respected scientists. Should be easy money except that, by the homeopath's own words, "it's impossible to prove"...for a host of fascinating reasons which I won't go into here. Suffice it to say that I think Mr Randi explains the situation quite well, and that all those who would argue against him might do well to investigate their own patterns of magical thinking.
This one is pure humor. Homeopathy is rich fodder for jokes among skeptics.
Frankly, it's a relief for me whenever a reasonable person speaks out against homeopathy. These videos both reached me today.