Patrick Moore is an old fart (although a rather sweet old fart). When men ran the BBC we had dramas that showed wife-beating as normal and accetable (Z cars) and comedies endemic with sexism and racism (On The Buses, Love Thy Neighbour, Mind Your Language and countless other examples).
I agree with him in some ways, TV is more trivial and obsessed with cebebrity but it's little to do with who runs it and more to do with who watches it.