Oh well, seems like I was unlucky yesterday then.. Thanks for the information though..
Having learned my lesson, today I was at Paddington at 18.50... And the 19.06 was showing on time up until.. yes you've guessed it, they finally displayed it as delayed at about 19.00.. I'd worked that out from the arrivals board already a while earlier.. So why the people in charge of the departures couldn't have done the same I don't know.
So, having arrived at Paddington nice and early so I wouldn't miss the train.. It ended up about ten minutes late.. Just my luck!
Incidentally does anyone know the reasons for the delays around about 7pm. My train wasn't the only one.
Oh, and I noticed during my time at Paddington a sign that said it was meet the managers up until 7pm today.. I didn't see any although I didn't venture all the way across Paddington towards the platform 1 area.. So maybe they were hiding there? Or, because of the impending delays, they escaped early?