In message , Peter
Beale writes

In article ,
(Helen Deborah Vecht) wrote:

Any Travelcard can be used on any bus.

Does that mean e.g. on the 84 out to St Albans, or is it just within
the former GLC area?

It is valid on a number of services well beyond the former GLC area,
including certain routes to Epsom, Westerham, Debden and even Dorking.
Details are in the "Beyond the Fringes" leaflet:

http://www.tfl.gov.uk/tfl/downloads/...he-fringes.pdf

On the 84, travelcards, bus passes, saver tickets etc can be used out as
far as Potters Bar, but not as far as St Albans.

--
Paul Terry