What an evening of mixed emotions. First I was so sad and also angry for having missed his Periscope video again - I was waiting for the promised soundcheck video but had left the computer when he then did it in the concert interval. And you only can watch it later when you have an i-phone. I really don't think he knows he is excluding large parts of his fanbase. Why not keep using Twitcast? There the videos got saved and could be watched later also.
But now I am happy again as I just got my first reply from John on Twitter! I never had any in all those years since I became a fan back in 2009. He is driving to the next concert town and tweeting from the car. Here it is *drum roll*
https://twitter.com/Team_Barrowman/status/601895369480544256