It seems like an interesting program. The buzzing would be a good feature to add but I think the more pressing thing right now is that I don't see anywhere to get the answers for the existing questions? Having to replace them all or look them all up before being able to play is a pretty big hurdle! Cheers.
p.s. I did see that there were two other episodes in subfolders but only one of them seems to have answers? So three episodes come with it but only one seems to have answers.