Halloween may turn out to be a historic day for the entertainment media. On that day, America Online will relaunch its AOL Red site aimed at teens by selling -- for $7.99 -- the previously unreleased horror film Incubus, starring Tara Reid. The $5-million film is expected to test the market for direct-to-download film product. On the same day, a new cable channel Fearnet, is scheduled to be launched on Comcast that will provide horror movies on demand. The channel is a joint venture between Comcast, Sony Pictures Television and Lions Gate Entertainment.