Noticed on TfL weekend travel a hint that a trial run of the Circle to
Hammersmith 'Teacup' service is happening this weekend. Can anyone
confirm this is the case? There are no 'service changes' displayed for
the Circle, they're just saying for Edgware Rd station:

"Saturday 27 and Sunday 28 June, there is no through Circle line
service. Passengers travelling between Bayswater and Baker Street in
either direction will need to change trains at Edgware Road"

Not the whole story methinks...

Paul