a touring show of performers, especially pop musicians:witness the last great rock ‘n’ roll band demolish an entire city with their million-decibel roadshow
a touring political or promotional campaign:the bank is planning a European and American roadshowClinton’s roadshow had the breezy feel of a candidate on a victory lap
each of a series of radio or television programmes broadcast on location from different venues.
roadshow in other Oxford dictionaries
Definition of roadshow in the US English dictionary