Saw this in my latest bill, along with the latest channel list:
Great News. During July 17th-August 16th, XFINITY TV 300
Latino and XFINITY TV 450 Latino customers will be able to
access a free preview of Encore Español (channel 626). Encore
Español is being added to the Comcast channel lineup as part
our XFINITY TV 300 Latino and XFINITY TV 450 Latino services
on August 17, 2014.