ABC Hobart Tasmania station close recordings from Beta video tapes recorded between 1981 and around 1985. Back then program transmissions ceased for the night and restarted in the morning. The ABC ran a black and white test pattern for around 5 minutes before the signal went to snow. Later they used a Philips test pattern generator overnight. Some televisions from that era would switch off automatically after a few minutes of only receiving snow for this reason, assuming the owner had fallen asleep watching TV. Can you believe Sony Music among others think they own the rights to our national anthem? Youtube copyright detection is broken.