In the UK, no political party is allowed to advertise on television. It is prohibited. Not even during an election cycle.
Instead, each party gets a Party Political Broadcast (PPB) which is 5 mins long, usually shown just before the evening news (allowing everyone to turn off!) Each party gets a specific number of PPBs.
America could really learn from this.
@Florence I can see where you are coming from. I was not trying to make any comparison - I have never lived in the US. I sometimes have my work cut out to avoid an overdose of politics in the UK. It is a relief to escape to Malaysia in winte.