Connectors to use an NTSC video input into the S-video and MXC jacks.
RCA to S-video connector schematic
If you want to make your own, the S-video connector (#278-451, $4.99), female RCA connectors (#274-337, $2.69), 470pf capacitor (#272-125, $.79), and 4 conductor (only 2 conductors used) telephone wire (#278-1310, $.15/ft) are available at Radio Shack.
MXC jack pinouts.
