Don't worry, I found it celebrating Australia Day in Sydney on 26th Jan this year.
After getting over the initial shock, I had a chat with one the enthusiastic bus museuem volunteers and there's an ex-pat community that love to look after the old London Transport buses. I never knew the 176 went all the way to Queens Park Station. That's got to be a two hour journey.
The vintage buses were very popular. People had to wait while a father took five minutes to get his buggy onto the bus. Not because it wouldn't fit, just that he had no idea how to collapse the buggy.
On the way back from Australia, I stopped over in San Francisco and spotted Forest Hill train station on an SF travel map. Unfortunately, I had no time to go there.