Because Drs get a cut from the advertising on the TVs - irrespective if anyone is actually watching.

And yes Leenia, we get it you can't enjoy TV because of your health.
No need to make an issue of it.

I can no longer enjoy running and swimming because of my health.
Many of us also don't get as much sex as we used to because of our health.

so yes, we do understand why you don't watch TV.
So enjoy what you can do without such fuss.