The fourth series began on 20 October 2008. For the first time Lucy Kennedy does not feature as co-host. Instead each week a female celebrity will guest present until they find a replacement.

Kicking off the series was Michelle Heaton who joined the Ballydung brothers for the first two shows. The second week sees Pamela Flood as guest presenter. Journalist and former Miss Ireland busty Amanda Brunker also presented the show. She teased the boys with her high cut dresses and bulging cleavage.

Other guest presenters up until Christmas 2008 included Mary McEvoy aka Biddy from Glenroe, Donna and Joseph McCaul, Rosanna Davison, Bláthnaid Ní Chofaigh, Rebecca Loos, Caroline Morahan, Anna Nolan and Twink.

After their usual mid-season break, the show returned on 9 February for a further twenty episodes with a new Lady of Ballydung Manor, Caroline Morahan. Podge (or Rodge) opened the show with the announcement that "It's the same oul’ shite", before introducing Morahan with a number of quips such as: “She was Off the Rails and now she’s off the dole queue”, “A fully nationalised, index approved ride”, “Lady Caroline of the Manor” and “Ireland’s answer to Angelina Jolie.”

The fourth season ran until 14th April 2009, which turned out to be the final episode of the series