Box Upfront was first named Q, was launched on 2 October 2000.
As of 3 July 2012, Q becomes Heat.
On 1 November 2019, the channel temporarily rebranded as a Christmas music channel called Boxmas, a role previously occupied by sister channel Magic (albeit not temporarily rebranded). As the impending shutdown was announced during the rebrand, the channel kept the Boxmas branding, but shifted back to it's regular playlist on 26 December.
Box Upfront ceased to broadcast on 9 January 2020, signing off with a block of departure-themed songs; "Goodbyes" by Post Malone and Young Thug, "Bye Bye Bye" by NSYNC, and "Goodbye" by The Spice Girls were the last videos played before it ended operations. The channel space then transitioned to a slide stating that Boxmas was "taking a break" and would be back for the next holiday season (though obviously on a different channel), and redirecting listeners to the other sister Box Television networks.[
| Free-to-air channels|
| Part of the Channel Four Television Corporation