JW, but does the time your teens spend on the 'Net make you :-) or does it make you :-@? IAC, enter the world of chat, emoticons, online shorthand, and YouTube in this fascinating documentary from "Frontline." Do kids understand the boundaries between the real and virtual worlds? Do you? What are the benefits─and the perils─of this new playground of interactivity? Watch this program and find some answers. HTH! 60 min. Soundtrack: English Dolby Digital stereo.