For MSO Comcast (NASDAQ: CMCSA), the X1 video platform it first announced more than three years ago has been one of its biggest releases. At a time when many of its smaller rivals are retreating from the competitive video landscape into broadband connectivity, Comcast is trying to offer a user experience that's better than that being delivered by OTT players like Netflix, Hulu and others. Comcast believes X1 will be so sticky that consumers will happily pay $200 cable bills and stay in the pay-TV ecosystem. Yet all of that is premised on the bulk of Comcast's 22.3 million subscribers actually getting their hands on X1. Indeed, the platform may be enduring the longest launch of any media technology product in history. And that's leaving a lot of questions unanswered as MSOs look to wireless offerings and Wi-Fi hotspots as growth engines. Even with rollout accelerating to a current level of 30,000 X1 boxes per day, the platform still doesn't appear to be in the hands of even half of Comcast's pay-TV footprint. For more on the X1 platform and where Comcast takes it from here, check out this FierceCable special report.