In 1989, Tarbuck played Dana in the first of the six Victoria Wood penned anthology comedy plays Mens Sana in Thingummy Doodah, presented on BBC1 in the series Victoria Wood.
In 2001, she took the title role in Linda Green, which ran for two series, ending in 2002.[3]
In 2004, she appeared in Series 6 of the BBC One comedy French & Saunders, as a fictionalised version of herself, where she had the role of producer for Saunders & French Productions with Christopher Hague-Moody.
In 2005, she appeared as Mrs Jellyby in the BBC One serial Bleak House,[3] and in 2006 she appeared in episode six of the sitcom Saxondale, as a full-figured rock chick.
In 2019, she starred in How Europe Stole My Mum. This Channel 4comedydocumentary, presented by comedian Kieran Hodgson and also starring Harry Enfield, examines how Brexit came about and how the divided country might be put back together.
She hosted a late-night edition of Win, Lose or Draw, and has presented Britain's Top Dog, as well as narrating the last series of the documentary Airport in 2005.
She presented a one-off quiz for Five called I Blame the Spice Girls to celebrate Five's tenth birthday. She has also appeared in advertisements for the supermarket Asda.
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 2Drivetime 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 11am – 1pm show.
UK Radio Aid was a charitable event in the United Kingdom held on Monday 17 January 2005 to raise money for the DEC appeal for the victims of the Asian tsunami. The event consisted of a twelve-hour radio show broadcast on 268 radio stations with an audience of over 20 million. Tarbuck presented the 16:00–18:00 slot with her former Big Breakfast co-host Johnny Vaughan.
Writing
I An Distracted By Everything [sic], written by Tarbuck, was published in November 2017.[10]-Tarbuck described the one-off publication as "an annual for grown-ups".[10]