Comcast is giving away free Xfinity Flex set tops to internet-only subscribers with xFi gateways in a bid to introduce cord cutters and cord nevers to the cable operator’s streaming video offerings and premium channels, alongside third party applications. Flex supports 4K and includes integrated search, much like popular connected TV devices like Roku, which is why Roku’s share price plummeted 14% as of market close yesterday. TV metadata pioneer Gracenote launched its Video ID Distribution product at IBC, allowing networks and studios to register content in the Gracenote Video Database to obtain content tags for use in search and discovery. While not revolutionary in itself, Faultline Online Reporter met with Gracenote in Amsterdam and can assure readers that…