In the 1970s Allen switched to working in radio, joining Independent Radio News, the newly launched news service for UK commercial radio. He eventually became the network's political editor while working at Westminster. He also worked as a presenter at its sister radio station LBC, the London news and talk station. Allen then switched to television and was ITN political correspondent until 1992, when he was one of "a string of high-profile resignations" following the company's budget cuts. He then joined London News Network.