Elderly presenters and guests of BBC News and Current Affairs television shows will be surprised to read about Niven James Sinclair in the Sunday People. His car firm had contracts with BBC from 1977 to 2005.
He began delivering guests to Lime Grove for Panorama. His cars were clean, his drivers reliable, and never late for tv appointments - a boon to BBC Breakfast which started in the Grove in 1983. They were, however, expensive, charging for mileage out to collect, as well as for the journey proper. When radio and tv came together at Television Centre in 1997, radio stuck to black cabs, but tv producers still preferred to book "Nivens". It''s nearly all mini-cabs these days.
For the full detail of Mr Sinclair's unpleasant history, read Cathy Fox's blog post.