a dumb need help for rtmpdump

[spock]

Hi folks,
guess this is a common question but ... after reading most of your posts I'm more confused than ever. I'd need something like as "manual for dummies".
Uh, BTW, I'm a MacOsX user (snow leopard).

Basically I'd like to download videos from mtvondemand. Stuff as "my life as Liz" or similar.
I have tried to understand your procedure but it looks arabic to me. I have most of the programs commonly used to see/download (VLC, various downloaders, ...) but none of them is good to download any of the above episodes.

I'm willing to learn so it would be useful a step by step method to download "tester episode"
I will then try to do follow your instructions applying them to other ondemand episodes/series to became more confident and learn the basics.
Remember that I can use the "terminal" only if you specify exactly what I should write on it. Also what you consider obvious.

can any of you do it (in the simplestest/smoothest way possible) ?

thanks a lot folks. Much appreciated