Complex sentence: In the 1970s up to the 1990s it also ran stand-up comedy evenings -'The Wantage Revue', and several groups who had performed at the Wantage Revue went on to perform at the Edinburgh Fringe Festival.
Split into simpler sentences: In the 1970s up to the 1990s it also ran stand-up comedy evenings -'The Wantage Revue'. Several groups who had performed at the Wantage Revue went on to perform at the Edinburgh Fringe Festival.