Comcast Corp. may seem like a white knight to Time Warner Cable, but the folks at Charter Communications probably consider it more of a snake in the grass. ( Joe Flint ) Those Charter subscribers, in such cities as Long Beach, Malibu, Burbank, Glendale and Alhambra, would eventually become Comcast customers -- perhaps as early as next year.PHOTOS: Faces to watch 2014 | Digital mediaMuch must happe