Walmart offers the Google Chromecast Streaming Media Player for $29.99. Choose Site-to-Store pickup to avoid the $4.97 shipping fee. (Amazon charges the same with free shipping for Prime members.) That's the lowest price we could find by $5, although it was $8 less a month 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.