Once a week for five years, it's run between Ealing and Wandsworth.
It didn't appear on any timetable, it rarely had any passengers and it's been costing taxpayers £450 a week.
So, is this the country's most useless bus service?
Ria Chatterjee reports.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.