Deal Frenzy via eBay offers the refurbished Sling Media Slingbox PRO-HD TV Broadcaster, model no. SB300-100, for $39.95 with free shipping. That's the lowest total price we could find for a refurb by $10 and the best price we've seen. This 2013 model features a Live Video Buffer, which enables up to 60 minutes of DVR-like control. It lets you watch TV (from your TiVo, cable box, etc.) on any networked computer from anywhere in the world.

A 30-day warranty applies, although it's unclear who backs it.