Target offers the Roku Streaming Stick, model no. 3500R, for $49.99. Opt for in-store pickup to cut it to $39.99. That's the lowest price we could find for a shipped unit by $9. (It's also $10 under our mention of a similar model from January, and the best price we've seen for any Roku Streaming Stick.) It plugs into your TV's HDMI port and streams 1080p video via WiFi. Deal ends August 2.