Best Buy offers the Google Chromecast Streaming Media Player for $30 with free shipping. (Amazon charges the same.) That's the lowest total price we could find by $5, although it was $2 less four weeks ago. It attaches to your HDTV's HDMI port and connects to your wireless network to receive streaming online video, music, websites, and more from your smartphone, tablet, or laptop. It also allows you to use your Apple or Android device as a remote.