McErlane co-presented the ITV quiz show Carnal Knowledge with Graham Norton in the early 1990s. McErlane co-presents the "Grill Graham" agony aunt feature with Norton on his BBC Radio 2 Saturday morning show, where listeners are invited to write in for advice from the pair and fellow listeners. She has also stood in for Graham when he was ill in 2013, and also when Graham was presenting from Baku for Eurovision 2012 and the line went down for half an hour. Also she has stood in for a number of presenters on the network, and is said by some listeners to have a sexy voice and presentation although she irritates an equal number of people. She also appeared on 16 episodes of Nigella Lawson's ITV chat show Nigella. She can also be seen frequently in the background on her TV shows. She is great friends with Nigella Lawson and Graham Norton, she splits her time between Hastings and a London mews house. In 2014 Maria gave up Smoking. She frequently spends time with Graham in his house near Cork, Ireland.