Measuring 200 metres by 200 metres, and 50 metres high, the proposed "superdome" would allow work to continue even during northern Alberta's punishing winter months, when the cold grinds construction to a standstill.

In what is likely to be his final major act as head of Canada's largest private-sector union, Mr. Hargrove moved up his retirement date and engineered an uncontested transition for his hand-picked replacement.

Once the chief money makers of the sector, conventional networks in Canada such as CBC, CTV and Global now account for less than 56 per cent of the revenue coming into the industry, according to new data published yesterday.