Comcast has been on fire of late, adding in high-def stations in more markets than we care to count. The next dot on its warpath is Connecticut, and starting today, it's planning a whole heap of HD channels for a variety of areas. In Middletown, viewers will see CNN HD (196), SciFi HD (217) and AMC HD (222) added within the next 24 hours, while Bravo HD (243), CNBC HD (244), Hallmark Movie Channel HD (252), QVC HD (281), E! HD (284) and Cartoon Network HD (287) will land in Hartford on Wednesday. Plainville, Vernon, New Haven, Norwich and Old Lyme all have HD newcomers of their own to deal with soon, so hop on past the break for the full list.