I do now have a television (given to me) and I watch it occasionally so I have a licence. It's less than 50p a day.
But years ago I had a black and white television. At that time the colour really wasn't very good and I preferred not to see it.
One day I had a telephone call from someone asking why I didn't have a colour television licence.
I explained that I didn't need one. I had a black and white television licence.
There was a pause, and then:

"I see, so you just have a black and white colour-television-licence."