Hockey Night in Canada is breaking out some classics to fill time.
HNIC (http://www.cbc.ca/player/Sports/CBC%27s+Hockey+Night+in+Canada/)
Check out some of the "Your Pick" archives. Includes:
1979 Game 7 - Montreal/Bruins
1975 Soviet Red Army/Montreal
I'm currently watching a 1978 Montreal/Bruins playoff game on CBC. I'm assuming it'll be available online with the others soon.