Maybe I haven't been paying close enough attention, but I cannot remember anyone pre-recording their Newscasts since CHQM-FM started doing so on September 1, 1971, to avoid simulcasting with CHQM-AM, to meet tighter CRTC simulcast regulations.
But, this morning, I turned on the radio to listen to Wolfman Jack on Cool 8-80 at 10:00 a.m. The radio was already on CHED, but when I switched to CHQT, it was the same newsman doing the 10:00 a.m. News on both stations. But they were not simulcast. CHED was live and CHQT was pre-recorded, complete with time checks.
Anyone know of any other instances? Years ago, I had assumed that TV Network News was recorded live in Atlantic Canada and then tape delayed across the country. But, I have a letter around here somewhere from CBC Brass that states that The National was (is?) being done live in each time zone.