Originally Posted by
ApolloBoy
Without modding, here's your options:
N64 - S-video (you can get S-video to composite converters as you said your TV doesn't have S-video)
Wii - Component
Xbox 360 Slim - HDMI
PS3 Slim - HDMI
PS1 original model - RGB (you can use a SCART to component converter for this)
3DO FZ-1 - S-video
Dreamcast - VGA
Xbox - Component
Saturn - RGB
Gamecube - Component or S-video, depending on the model
PS2 original model - Component
2600 original model - RF
Intellivision original model - RF
Sega Genesis original model with CD and 32X - RGB
NES original model - Composite
Master System original model - RGB
SNES original model - RGB
C64 original model - S-video or composite, depending on the model
VIC-20 - Composite