TORONTO - CTV has rebranded its group of channels formerly known as A-Channel. Beginning today, A-Channel will be known simply as 'A'. The name change is reflected in a new single-letter logo and a new on-air presence that premieres tonight at 6 p.m. CTV says the updated re-branding initiative is designed to complement its new fall primetime schedule.The broadcaster says the name change is the first step in a move that will see a unified 'A' schedule delivered to viewers in British Columbia, Alberta, Ontario and Atlantic Canada and across Canada on digital cable and satellite beginning in September. Effective today,...