TV as a video monitor

[Jim Reamer]

Hey,
    I'm trying to use my G4 PowerBook to show video in my classroom 
using a TV as a monitor. I'm using a S cable for video and Y cable - 
RCA to headphone jack -  for sound. On my home TV, a new JVC, I get the 
desktop design but no icons and only random windows. The help window 
won't show on the TV but the system preferences window does. The movie 
definitely does not! Can anyone help?

    Also, I had to change my "region" when I started the DVD for the 
first time. It said I have only 4 or 5 more opportunities to change. I 
don't know that means but it sounds ominous.

Thanks, Jim