YouTube user Retrontario, formerly known as WNED17, frequently uploads fantastic retro-Toronto-centric gems. These clips never fail to bring back a ton of memories for me, so I feature them from time to time.
In this age of 24 hour broadcasting stations, the television station sign-off has gone the way of the do-do bird. When I was growing up, most stations signed off for the night with contact and technical information about the station, followed by the national anthem and then either static or a test pattern.
I love this Global Television Network sign-off from 1984. It's chock full of detail about their C-III-TV transmitters and it opens with a nice SkyDome-less shot of the CN Tower.