Hewer's status as a businessman and public figure has been used in various ways; for example, in 2012, he was one of many celebrities to help promote the change in the UK pension scheme to automatic enrolment. In 2013, he worked with Vista Print on their "Build Your Small Business" campaign, and in 2014 worked with Bark.com to promote its services marketplace product.
On 9 January 2012, Hewer became the new host of the Channel 4 game show Countdown taking over from the sports presenter Jeff Stelling.
In July 2012, Hewer presented a four-part series on BBC Two called The Farm Fixer, in which he assisted farmers in Northern Ireland in diversifying.
On 2 November 2012, Hewer received an honorary Doctor of Letters degree from Kingston University in recognition of his "outstanding contribution to business and entrepreneurship".