Helping to spread laughs throughout the land, Helium Comedy Club hosts headliners and tomorrow's brightest stars at its Philadelphia, Portland, and Buffalo locations. In front of a tabled showroom that allows audiences a clear sightline and maximizes guffaw acoustics, a bustling calendar of familiar comic talent fills most of the week with levity, and open mic nights and standup workshops put aspiring jokesmiths higher up the comedy rung.