thanks for letting me know.

Regarding the "Change channels while recording" dialog box, the 
latest Remote Buddy version does avoid it by performing this check 
itself, then bringing up its own error message in a gently fading 
bezel that doesn't need any interaction from your side. Please update 
to the lastest version to benefit of this.

Problem would probably not be to implement the selection of a dialog 
box' button but rather to detect that the active window is a dialog box.

Is there any other EyeTV dialog box that you ever stumbled upon while 
using EyeTV via Remote Buddy?

Best regards, 
Felix