BBC Radio 2
During September 2007 Tarbuck co-presented the weekday afternoon show on BBC Radio 2 with Mark Radcliffe, whilst Steve Wright was on leave. In December 2007 (and again in January and March 2008), she once more hosted the show, this time as a solo presenter. In July 2008 she once again co-presented with Radcliffe.
In December 2008 and January 2009, she presented the Saturday morning slot on BBC Radio 2 with Martin Freeman whilst Jonathan Ross was away from the station, and again in August 2009 alongside Huey Morgan of Fun Lovin' Criminals. The pair presented the show again in November 2009.
For a week in March 2009, she stood in for Sarah Kennedy's popular Dawn Patrol show.
Tarbuck stood in for Simon Mayo on his BBC Radio 2 Drivetime Show for three weeks in July/August 2010 also covering the show on 18–22 April in 2011, 1–19 August in 2011, 4–8 June 2012, 14–18 February 2013, 15 July 2013, 26–30 May 2014, 6–10 April 2015 and 14 June 2016. On 9 October 2018, she presented the Drivetime show (5pm–8pm) with Simon Mayo while Jo Whiley was away from the station.
On 25 December 2009, she presented a four-hour show on BBC Radio 2 called Liza Tarbuck's Christmas, from midnight until 4am.
In 2013, she presented a BBC Radio 2 special celebrating the career of the British comedian Ken Dodd called How Tickled I've Been.
In 2015, she visited Mary Berry at her home for a BBC Radio 2 Christmas Eve special.
On Sunday 8 October 2017, she stood in for Michael Ball on his 11 am – 1 pm show.
On Wednesday 25 December 2019, she presented a Christmas day special called 'Family Rhythms', 6 pm – 8 pm. Guests included film director Richard Curtis, Strictly Come Dancing star AJ Pritchard, his Love Island star brother Curtis Pritchard, and Spandau Ballet brothers Martin Kemp and Gary Kemp. Tarbuck presented another Christmas Day special in 2020.
On 12 May 2012, she began presenting her own radio show on BBC Radio 2, between 6pm and 8pm, on Saturdays, replacing Going out with Alan Carr presented by Carr and Melanie Sykes. On 11 March 2026, Tarbuck announced that she had left Radio 2. Her final show was broadcast on 17 January.
