You can catch "Heroes" at 9 pm on Mondays…or maybe later. Nielsen ratings now take into account viewers who TiVo their favorite shows as DVR use becomes more widespread. Video on demand (VOD) will soon have a similar effect, with NBC joining ABC, CBS, FOX, and the CW in offering free viewings of its most popular shows. Joost, now in public beta, has an extensive collection of shows from network and cable stations, and it keeps TV watching social by including chat forums and widgets to share. And NBC and FOX have teamed together to create Hulu, in private beta this month, which hosts both networks' shows in simulcast, meaning you can now catch "Heroes" on 9 pm on Mondays -- on your computer.
