>While there has been incursion of talk radio (LBC/Farage), there is no counterpart to the hyper-polarised TV of Fox News yet. Sky News is comparatively normal.

This is because we have strong broadcast regulation. Broadcasters must have regard for due impartiality and due accuracy.[0]

LBC are managing to push that line to its very limit, by having shows that are presented by opposing polemics so that overall they maintain balance.

[0] https://www.ofcom.org.uk/tv-radio-and-on-demand/broadcast-co...