Steve P wrote:
snip
supply problem". Throughout the period of low voltage (10.30-18.00) the
only thing that worked correctly was my 28in widescreen TV!
I am assuming my TV can operate on any voltage from 110 to 240?
As the whole estate is fed by underground supply how come neighbours
were OK, I got 110V and the street lights didn't work at all?

Thoughts please?

It's probably not a good idea to use electronic appliances, even if they
seem to work.
While it may be fine to run the TV at 110V, some designs of auto-switching
unit will have problems at 170 or so, and even if not, it's vastly
more likely when there is a fault like this that you'll get spikes as
it's fixed, which may kill what you're using.