Many older TVs don't have AV inputs, making connection of modern AV sources a no-go. You can alleviate that problem with this nifty RF modulator: it takes a composite video or S-video AV signal and converts it into an RF signal down the antenna line so that your TV just tunes into the signal as if it were a broadcast TV station. Also very handy for piping AV signals around the home on existing TV antenna cabling, allowing you to view an AV source in multiple rooms around the house without the need to lay new cabling. You can even select which channel to modulate the AV signal into, to avoid interference with any existing signals on your TV antenna line. Modulates signals into the UHF range. Mains plugpack included. Click on image for rear view.