I don't see It being impartial due to the demonisation in the media towards any kind of anti eu sentiment. It has happened for the past two decades if not longer, while many things have been overlooked from the main parties. Etc
Erm much of the Media IS anti EU, just in case you've missed ever seeing the Sun, Mirror, Express, Daily mail for example.
I seem to remember a lot of headlines about "silly EU laws" or "EU bans.." when in reality the laws made sense when you actually read or knew anything of the background, and the "ban" was often nothing of the sort, or at the most guidance on making something more efficient/better so the ban on high power vacuum cleaners was really rules to push manufacturers to stop putting highly inefficient motors in them (I know I'd prefer a vacuum that had an 800 watt motor and cost an extra fiver than one that had a 2kw one and put out an extra 1100 watts in noise and heat).
The likes of the broadcast media had to be far more impartial and actually try to stick to reporting facts and what people said, so if Farage was saying something as fact they had to put someone on who could respond to it.
Whilst if Farage or UKIP were making idiots of themselves (again) they just reported that, in the same way they report about Labour and Conservative politicians making fools of themselves.
It's hardly the likes of the BBC or ITV's fault if UKIP has so many "characters" who can't work out that certain things don't go down well with the bulk of the public.