Broadcast Equipment Failure in Early Television

[Rinehart]

I was, and still am, living in Ottawa, Canada, and the period would be roughly 1973-75. This happened more than once, but I recall most clearly one occasion when, after having difficulties with the sound track, all of a sudden the picture froze on the TV screen, tilted diagonally, and with the sprocket holes clearly visible. It remained like that for a few seconds, and then the station ident was put on the screen. I can't remember how long the program was interrupted; as an impatient eight-year-old it seemed like forever, but it was probably just a couple of minutes.