This sounds like a homework assignment and it's better all the way around, if you were to write this yourself. Good luck!
You know if the power goes out, like it often does after a natural disaster you can get radio with just batteries. The same can't be said for TV, especially since they went all digital. I had an emergency black and white TV that ran on batteries but it was analog.
There is an explanation about BBC Drama here in the UK.
"The scenery is better on Radio"
BBC Radio drama is VERY good, but it relies on painting a picture in your imagination.
I'd start my paragraph with "Radio paints a picture in your imagination."
Your own intellect and thought ought to be able to fill in the rest.