A one-hour timeshifted service of the channel – then known as UKTV G2 – began to operate on 1 November 2004, under the name UKTV G2 +1. As UKTV G2 at the time was an primetime service, the timeshift also operated in the evenings only, using the satellite and cable capacity which, during daytime, was used by the now-defunct UKTV Bright Ideas. The sharing arrangement meant that when UKTV G2’s hours extended into daytime, the timeshift remained evenings-only.
At the time of the Dave relaunch, UKTV Bright Ideas closed, freeing up the space to allow UKTV G2 +1 to expand its hours to follow those of the parent channel fully; due to the main channel’s relaunch as Dave, UKTV G2 +1 became Dave +1.
The timeshift was initially available on the Virgin Media and Sky platforms; from 22 January 2009, following UKTV’s acquisition of a further Freeview broadcast slot, Dave +1 was made available on the digital terrestrial platform.
On 24 February 2009, Dave +1 was renamed Dave ja vu (a play on the phrase déjà vu) on all platforms; this was carried out to “strengthen the brand’s positioning as the home of witty banter” according to UKTV bosses.
On 14 June 2011, UKTV announced that Really would launch on Freeview on 2 August 2011, to facilitate this Dave ja vu’s broadcast hours on the platform were reduced from 8.00 am-4.00 am to 2.00 am-4.00 am. On 22 November 2012, UKTV confirmed that it had secured a deal for another 24-hour DTT slot and would use it for Dave ja vu until it firmed up permanent plans for the slot. Dave ja vu began to broadcast its full schedule on the platform again from 3 January 2013. Drama permanently took the slot from 8 July 2013, however Dave ja vu continued to broadcast between 2.00 am-5.00 am.
On 20 November 2014, Dave ja vu returned to 24-hour broadcasting.