Comcast's X1 turns 3, but the rollout has been anything but fast

Comcast's (NASDAQ: CMCSA) X1 platform may have initially been touted as a "big moment" for the cable MSO when initially debuted three years ago, but the rollout has continued to lag.

The rollout of the X1 platform comes at a time when its bread and butter video service business continues to erode as more users flock to OTT video players like Netflix (NASDAQ: NFLX), Hulu and others. During the second quarter of 2015, cable lost 625,000 subscribers, the biggest quarterly loss ever reported for the sector, according to SNL Kagan.

To see how Comcast's X1 platform has evolved since its debut in 2012, check out FierceCable's new special report.