These have been happening for a couple of months now, and I feel remiss for not mentioning it earlier, but the ABC's digital TV channel ABC2 has been reviving old cricket footage in their late evening timeslot.
"Late Night Legends", which begins around 10.45pm each night, features footage of old, allegedly classic, sporting telecasts from the ABC archives, which date back to 1957. In addition to cricket they have shown rugby union and motor racing (though the nostalgic value in watching again a touring car championship race from Oran Park in the late 1970s is beyond me).