No, because for some, "isolated" people TV ads may be the only way of reaching them, so I think TV adverts are OK & in the spirit of fair, healthy competition and all that.
Also in the UK, a party has to have a minimum of 1 million pounds before being able to register & stand as a political party, so if you can't afford a bit of airtime with that money, then you're not really a very good party.
So are you actually suggesting banning politicians outright? I mean any politician who can afford to go campaigning instead of working "is obviously been out out by corporations" too.