You found 2 products in Input Adapters - Apple

Apple (M9319GA) Video Capture
Video Capture, Video Input: S-Video, For: PC system(s)
2 store offers from £14 - £18

Apple Pal Dvi To Video Adapter - Powermac G5 / Mac Mini (MA026ZM/A)
Interface with Host: DVI, Video Input: S-Video, Analog Format: PAL, For: Mac system(s)
1 store offer at £43