This appears to be new … for many months (going into years now), there have been ‘Next train’ Dot Matrix Indicators on the Piccadilly Line up to Rayners Lane, but since the day they were installed they have either never been activated, or just never worked.
(The situation at Ealing Common remains the same – on the eastbound platform, you can hear and then see the train pulling into the station before it even flashes up on the board, and on the westbound platform it often gets out of sync so a District train pulls in and says it’s going to Rayners Lane…)
Until recently, we spotted that the ones at North Ealing are now working! And travelling up the line a little it appears the ones at Park Royal and Alperton are now also in use, but at Sudbury Town and and Hill they are not – still, having them now working at three stations is better than having them not work at all, and maybe it’s a sign that the others will be activated shortly …