Firstly, connecting the two machines is not the problem.
The recorder is OK and the TV is OK except that there is no sound.
I am not capable of plugging coloured things into sockets. I don't even believe there are such connections on that back of the TV. And secondly, I don't want to subscribe to anything. I will pay the £20 for nothing and seek help elsewhere. .
I have unplugged the recorder from the TV. It was a scart plug, the aerial and one other. Using the TV menu, I then checked the sound buttons and moved each setting. I also checked the volume buttons down the side of the TV and moved the sound level slightly to check, but there is still no sound.
We have a DVD player so I pulled out the scart lead, checked the sound settings on the TV remote and down the side of the TV. And then I replaced the scart lead in the DVD, checked the sound and it is still dead.
What next, please?