On Fri, 2 Dec 2005 12:33:04 +0000 (UTC), marcb
wrote:

Does the Met line run to Watford on Saturday? I can't work this out on
the TFL site.

Yes, but only from Baker Street. The joint Circle/Met/H&C section
between Baker Street and Liverpool Street is closed.

If not, what's the fastest way of getting there from the City area (ie
Moorgate)?

Central line from Bank to Oxford Circus; Bakerloo to Baker Street; Met
to Watford.

Or (depending what part of Watford you want to go to):
Northern line to Euston; fast train to Watford Junction. (Optional:
local train from Watford Junction to Watford High Street.)