Hello. I want to see TV on the iMac. Is it possible ? I have 3 decoders. 1) with RCA & SCART outputs. 2) with RCA output. 3) S-Video & RCA outputs. I prefer to connect RCA or SCART if possible cause the s-video is the main decoder at home but if needed... Thank's a lot. p.s.: sorry for any spelling mistakes.