TV confessions: Richard Madeley and Paula Hamilton
18 January 2013 Last updated at 12:40 GMT
Richard Madeley recalled an interview with OJ Simpson after his acquittal for murder, and Keith Chegwin's revelation about his drink problems as he debated whether TV is the right place to make a confession.
Model and former Celebrity Big Brother contestant Paula Hamilton spoke about her on-air alcohol and drug confessions.
The pair spoke to Andrew Neil, Alastair Campbell and Michael Portillo as Lance Armstrong admitted using performance-enhancing drugs to win his seven Tour de France titles.