This is what passed for Television entertainment during much of the 60's and early 70's. It's called a test card and the notion was that when they had run out of programmes to show, you used it to set up the picture on your TV (contrast, brightness etc. but not colour). Colour had yet to be introduced to TV - hard to believe - even the local Cinema which was a total dump had colour.

Accompanying this dull graphic was an annoying tone that lets you know what it's like to suffer from tinnitus (a useful warning for when you get older and go to MBV concerts).