The changes in the ionosphere caused by the total solar eclipse
will NOT affect either television or "FM" radio stations broadcasting
This means NONE of the national BBC stations nor the regional
and commercial radio stations operating at these frequencies
will notice any difference in reception during the eclipse.
This is because television and the radio stations that use Frequency
Modulation (FM) are are using much higher frequencies than those
that are directly affected by the ionosphere. Television transmitters
generally broadcast anywhere between 100 MHz and 1000 MHz and FM stations
are broadcasting between 80-110MHz.
The radio waves at these frequencies shine straight through the ionosphere
and tend not to be reflected like the lower frequencies .