Star Media also runs several Christchurch events including the City 2 Surf and the Home and Leisure Show.

Following the 2011 Christchurch earthquake, CTV relocated to the Mainland Press headquarters with the two companies collaborating to promote local news coverage and cross-media sales.

At the time, Mainland Media was owned by Pier and Charlotte Smulders, and chaired by Allied Press director Nick Smith.

[1] On 3 July 2018, the company assumed its current name CSEP Holdings Ltd.[1] On 1 August 2018, Star Media and its stable of community newspapers, magazines, digital platforms and events was acquired by the Dunedin-based media company Allied Press.

Steve McCaughan, the Regional Manager of Star Media, described the government's decision as devastating.