Radio Shack 15-1244 Audio / Video to RF Modulator
Used working RF Modulator converts Audio and Video to RF signal.
If your TV does not have AV Jacks then this RF modulator will take the signal from your DVD/VCR/GAME etc.
and convert it to RF and feed it to your TV antenna input so you can see the video on channel 3 or 4.
The RadioShack Video RF Modulator is designed to convert the separate audio and video
signals (from a video camera, computer,portable VCR, or satellite receiver, for example
) into VHF TV signals that you can view on a TV set that has no A/V (Audio/Video) inputs.
Radio Shack Manual and more specs available online