With Comcast’s acquisition of Adelphia, changes are afoot. In a press release today, CBS-19 (and ABC-16, and Fox-27) announced that they’ve managed to snag channels 2, 3, 6, and 9 for their channels. Presumably NBC-29 will remain at 4, the position they’ve long occupied on Adelphia. The shuffle is slated to take place on December 28. And it seems the rumors are true: Comcast will be offering high definition video, with ABC-16, CBS-19 and Fox-27’s HD commencing “within 90 days,” station GM Jim McCabe wrote in an e-mail this morning.