TORONTO – High definition television set owners in Toronto and Vancouver can now pick up CTV in HD, over the air. The company officially announced its digital transmitters on Toronto’s CN Tower and Vancouver’s Mount Seymour are operational. CTV is the first national conventional Canadian broadcaster to transmit HD OTA, says the company. (Ed note: this is a clarification of an earlier version of this story which said CTV was the first Canadian broadcaster to offer high definition over the air - a distinction several readers pointed out - and that www.cartt.ca should have remembered - belongs to Citytv in Toronto....