How will Charlie Rose wake up for the “Early Show?” TV insiders can’t comprehend how CBS plans to rouse the notorious night owl for its revamped 7 a.m. morning show, which sources say will premiere in January. We hear the PBS talk-show host will begin broadcasting at a more civilized 7:30 a.m. after a half-hour of news headlines from current anchors Jeff Glor and Erica Hill. Rose will host a major newsmaker for a longer sit-down interview from 7:30 to 8 a.m. Sources say Gayle King will take over with a “View”-style roundtable from 8 to 9 a.m. A CBS rep said, “CBS News declines to comment on rumor and speculation.”