It's been three and a half years since the last major TiVo release and while the company has offered some new features since -- via hardware revisions, software updates and accessories -- we're very excited to tell you that TiVo is back. The three new TiVo Roamio DVRs range in price from $200 to $600 (plus service), all with at least four tuners and built-in WiFi. And the Pro and the Plus have integrated TiVo Stream functionality. The cool new trick is out-of-home streaming for both live and recorded shows, with the ability to download shows to your iOS devices while away from home. (Note: this feature isn't coming to the Roamio until this fall, so we tested it with a TiVo Stream instead). There's also a new remote that no longer relies on IR, as well as a refreshed user interface, which includes the What to Watch Now feature and new Netflix and YouTube apps -- that launch quickly now. We'll get into all the highs and the lows in just a moment, but we're pretty confident in saying these are TiVo's best boxes to date.