Bannister first established himself as a name in the radio industry in the late 1980s and early 1990s as Managing Editor of GLR (Greater London Radio), the BBC's local radio station for London. Here he worked for the first time with Chris Evans, who was pioneering many of the ideas which would later win him greater success and much controversy at Radio 1, and also employed a number of the more musically credible DJs from Radio 1's past, such as Annie Nightingale, Tommy Vance, Janice Long and Johnnie Walker. The line-up also included Danny Baker, Emma Freud and Chris Morris.