Nationwide Building Society has launched a new TV campaign featuring a 'magical carousel' made up of the moments in people's lives.

The 'On your side' campaign got underway with a 60 second spot during the return of Downton Abbey on Sunday. It will be followed by a London-focused digital out of home campaign and an online partnership with AOL.

The ads have been created by 18 Feet & Rising with media planning and buying handled by MPG Media Contacts.

Nationwide marketing director, Andy McQueen, said: "On your side’ is Nationwide’s promise to help hard working Britons get on better with their money, and the new campaign – spearheaded by the TV ad – will bring this to life by showing how we really do help them, whether its managing their day-to-day finances better or saving for the big things in life, such as your first home or your child’s education."