 McKern's advertisements were not as popular with the viewing public as Houseman's, and in 1989, Smith Barney switched to a campaign featuring the voice of American actor George C. Scott.In the 1990s, McKern appeared in a series of advertisements for Lloyds Bank, widely shown on British television, in which he portrayed a character reminiscent of Rumpole.McKern wrote one radio play, which became the film "Chain of Events" (1958).