What is the difference between 'tuned to' and 'turn on'?

[Jeanluc]

Test No. errors/elem-11 "At the Finance Company", question 4

It's always tuned with BBC radio news so I start the day finding out what's been happening in the world.

(a) always
(b) with
(c) start

Test No. errors/elem-11 "At the Finance Company", answer 4

It's always tuned to BBC radio news so I start the day finding out what's been happening in the world.

Correct entry: to
The error was: (b) with

You have found the error but your entry is incorrect.
It's always tuned on BBC radio news so I start the day finding out what's been happening in the world.
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Hi, what's the difference between tuned on and tuned to? Thank You
Ref:Test errors/elem-11, Answer 4

[Torsten]

Hi Jeanluc,

You can turn on the radio, light or TV, that means you adjust the controls of the device so that it starts working.

When you tune into a particular channel or station, you set the controls on your radio or TV so that you can listen to or watch that channel or station, then your radio or TV is tuned to a particular station or channel.
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