Groupon offers the refurbished Roku Express Streaming Media Player for $19.99 plus $3.99. That's $36 under our May mention of a new one, which was bundled with a TV antenna, and $9 under the lowest price we could find for a new unit today. It features 1080p HD streaming, 802.11n wireless, and HDMI.

Note: A 90-day Roku warranty applies.