Anyone who hasn't checked their TV or broadband bill in a while should act fast and make some urgent changes. That's the latest alert from consumer group Which? who says homes are missing out on huge savings by not switching or haggling with their current provider. According to new stats, out-of-contract TV and broadband customers could save, on average, around £160 by switching with Sky users getting a whopping £235 if they move to a better deal.

Even if moving sounds like a hassle, Which? reckons many TV and broadband customers who haggled with their current provider could still find themselves £117 better off.

If you do want a better deal from your current supplier give them a call and ask for the retentions team, go prepared with other offers you've found and always be polite as this will give you more chance of getting a price drop.

Along with internet and TV bundle prices, Which?’s research also found that there were significant savings available for broadband-only customers who switched providers, with the average being £105. Customers switching from BT, Sky or Virgin Media saved even more – up to £165 on average for Virgin users.

Broadband customers who simply haggled rather than switching saved £55 per year, with Virgin Media customers seeing the biggest average saving of £81.

Which?’s survey found that price was the most common reason for switching but that people also frequently benefitted from better customer service, faster download speeds and better connections.

Speaking about the latest stats Natalie Hitchins, Which? Head of Home Products and Services, said: "Our latest research shows out-of-contract broadband, TV and mobile customers can save a substantial amount of money by switching providers or haggling with their current one – and that most people find the process easy.

"With many telecoms providers already adopting Ofcom’s ban on unpredictable mid-contract price hikes before it officially comes into effect in January, consumers can more easily compare deals and should feel empowered to switch and potentially save hundreds of pounds."