Billy Boyd to guest on 'City Secrets'

Reported this week by Basically Billy Boyd:

Looks like Billy is filming City Secrets on Sky Atlantic with Alan Cumming.  Just spotted these tweets!

Hidden Lane Tearoom ‏@HiddenLTearoom -  very much enjoyed having Billy Boyd and @alancumming in the Tearoom today! Looking forward to watching City Secrets on Sky Atlantic soon!

And this:

JamHot ‏@JamHot - Saw Alan Cumming and Billy Boyd in the hidden lane where our studio is today. No idea what they were up to but they had a camera crew

And this:

walkingheads ‏@walkingheads - Billy Boyd (@OfficialBeecake) has also been seen filming in the #HiddenLane today… Wonder if they’d enjoy taking our #Glasgow Music Tour?

Source (and credit for photo): Basically Billy Boyd