Thank you for another interesting recording - Johnny Moran was mostly heard on Scene & Heard but deserved more airtime.
I have re-tagged my copy as 19730407 (Saturday 7 April 1973). Johnny mentions that the show preceding is The Rolling Stones Story, which was always broadcast on Saturday. In the news, there is a report about an International Peacekeeping helicopter being shot down in Vietnam, as reported on 8 April 1973 in The New York Times https://www.nytimes.com/1973/04/08/archives/peace-agency-helicopter-believed-down-in-vietnam-report-disputed.html and a death from smallpox in Harrow, which was mentioned in the UK Parliament official record Hansard on 12 April https://api.parliament.uk/historic-hansard/written-answers/1973/apr/12/smallpox . Also, some of the tracks are 1973 releases.
7 April 1973 Radio One schedule can be viewed here https://forums.doyouremember.co.uk/archive/index.php/t-20521-p-10.html