Incrementalism is the key. Get her hooked on YouTube. From there, it's streaming video sites, then torrents. Before she knows it, she'll be spending more time on the computer and less time in front of tube. After that, it's a short leap to FR. :-)
Um...er... I had to stop her from going on line. She went to retail clothing sites. Soon after wards we got some pretty vulgar email from China (sex ads). She used to be a fan of “Charmed.” She went to a fan site and our computer got “hijacked.” At least with the TV the damage potential is relatively low.