PLEASE can anyone in your wide readership answer a question for me — who is responsible for the electric signs which normally give bus times, for example, at Tavistock Bus Station and Yelverton Roundabout?   On occasions (including today) the sign reads 'No Buses for One Hour' which is not the case as the buses are running normally. Misleading and unhelpful for passengers who may have their travel plans disrupted needlessly. I have contacted the following, to ask this question:  West Devon Borough Council, First Group buses, Plymouth Citybus, Plymouth City Council and Devon County Council.  None of these were able to help.   All I want to do is suggest that no information at all would be preferable to what is incorrect and misleading. Judith Brown Bere Alston