Complex sentence: Many major Canadian comedy and musical performers have played on the Riv's stage, including The Kids In The Hall, The Frantics, Sean Cullen and the infamous Dark Shows, the club originally earned a reputation as one of Canada's hippest music clubs.
Split into simpler sentences: Many major Canadian comedy and musical performers have played on the Riv's stage. Home of such comedy shows as The Kids In The Hall, The Frantics, Sean Cullen, and the infamous Dark Shows, the club originally earned a reputation as one of Canada's hippest music clubs.