Thatcher appeared on Living TV's Most Haunted on 13 February 2007 as a celebrity guest alongside presenter Yvette Fielding and medium David Wells as well as Joanne Gregory to search for paranormal activity at Tatton Hall in Cheshire.
In 2007, Carol Thatcher travelled to the Falkland Islands and Argentina for the documentary Mummy's War, in order to explore the legacy of the Falklands War. Whilst receiving a positive reception from the pro-British islanders (who regard her mother as a heroine), her reception in Argentina provoked protests and demonstrations (including the cry "Your mother is a war criminal!"). During her stay in Argentina, she met a group of mothers who lost their sons during the conflict and stated, "We were fighting a war; we won, you lost," and reminded them that it was their country that invaded the islands, thus initiating the conflict. The interview ended with one of the women claiming that "God will punish her (Margaret Thatcher)".