How do I record PS2 game cutscenes into .avi movies while I play PS2 on my TV(video 1) ?

My goal is to record PS2 game cutscenes into .avi movies while I play PS2 on my TV(video 1).

I have an Apple Powerbook G4 14 inch model laptop.
It has S-Video out only. (no RCA)
It is Mac OS X 10.4 Tiger operating system.

What TV Tuner card do I get that is compatible with Mac OS X?

I don't want to play my PS2 on the laptop but I want to play it on my TV(on video 1) and have it being recorded on my laptop at the same time.
I heard you have to get a splitter in order to do this. I don't know what that is yet.

Please help me by providing information on what I need to get in order to do this.

Thank you for the help.

 

I mean I want to just record the ps2 cutscenes into .avi files mainly but I heard that means you have to play it on the computer also. I want to still play the game on TV...

 

PLEASE.

 

please.