Check out the Mashups:
(Warning, one of the clips has been embedding disabled. The Network clip, of course. Mashup won't work without toggling a couple tabs. Feel free to read it for fun, though. )
Something I'm real fond of is the fact that you can play more than one YouTube clip at a time. This makes for some great mashup opportunities.
Mashing is when you take two different pieces of music (or media like I like) and play them together for maximum effect. Mash's Up!
Jimmy Smith vs Howard Beale
Start Jimmy Smith, than start Howard when Jimmy hits 0:38.
Start Jimmy Smith, than start Howard when Jimmy hits 0:38. Coming out of the intro the horns hit. If you hit that right at :38, the horns blend into the TV intro music. And the timing is great because right when the songs climaxes, Howard passes out. I love mashups, but this one's real good.
Click Howard when Jimmy hits :38. (Adjust volumes as necessary for good mix.)