Q: A/V on iBook

The displays control or preference panel should be set to 'mirroring' by default when

the external display is detected. You may have to restart with the display attached to

get it to show up in the system or use it.

Display: Composite video output to TV through AV port, requires a basic adapter.

Depending on the Mac OS or OS X version you have installed, the panel will vary.

And the display or TV you choose may have to be a vintage item, so it will have a

port to match the specification of the old computer and its video adapter.

iBook G3 SE video adapters?

https://www.google.com/?gws_rd=ssl#q=iBook+G3+SE+video+adapters

Not sure if these pages will help:

http://lowendmac.com/2000/ibook-firewire-366-mhz/

http://lowendmac.com/2000/ibook-se-firewire-466-mhz/

Been some years past, since I'd used vintage external displays; so I don't remember!