Don Pearce said:

I agree with Terrierborg. I don't watch sports but there is a dramatic
difference in filmed shows. I have mediocre eyesight and the HD
improvement is overwhelmingly apparent.

If it is hugely improved for somebody with mediocre eyesight, it
speaks not of the high quality of the HD picture, but the absolutely
abysmal quality of the previous one.

At last you understand. This level of service could be your video future
too. BTW, do you Brits still pay a "telly tax" for each set in your
house?