Roku devices allow simple streaming to TVs

Roku has introduced two new models. The original $99 model - which remains part of the line, has a built-in 802.11g wireless network adapter that’s more than fast enough to stream HD video from your home wireless network to a high definition TV. The company has now introduced an even faster (802.11n) device that will sell for $129 and a lower-end $79 device that has a composite video output (for standard definition TV only). The other devices have an HDMI port that outputs audio and video for high definition flat screen TVs.