CBC's coverage of Games 3, 4 and 5 of the 1954 Stanley Cup Finals were joined in progress at 9:30 p.m. (approximately one hour after start time).
The CBC had to conceive a way to carry the Finals between the Chicago Black Hawks-Detroit Red Wings or face public revolt.
According to lore, the CBC found a way to link their Windsor viewers as having a vested interest in the Finals with the across the river Red Wings.
Thus, CBC was able to carry the series after inking special contracts with the Red Wings and Black Hawks as a service to the Windsor market.
The most commonly seen video clip of Bobby Orr's famous overtime goal ("The Flight") in Game 4 of the 1970 Stanley Cup Finals is the American version broadcast on CBS as called by Dan Kelly.
This archival clip can be considered a rarity, since about 98% of the time, any surviving kinescopes or videotapes of the actual telecasts of hockey games from this era usually emanate from CBC's coverage.
The explanation that Irvin received was that the CBC's master tape of the game (along with others) was thrown away in order clear shelf space at the network.
Because CTV did not have 100% penetration in Canada at this time, they asked CBC (who ultimately refused) to allow whatever one of their affiliates were the sole network in that market to show the playoffs.
Therefore, at the closest stoppage of play near the 10 minute mark of the second period, Cole or Robson handed off the call to Kelly for the rest of the game.