There are 5 comedy shows in Houston tonight and 15 over the next seven days, at clubs including The Riot Comedy Club, Punch Line Houston and Houston Improv. This weekend (Friday to Sunday) there are 5 shows listed. 2 of this week’s shows cost $20 or less. Every listing is checked against the club’s own calendar or ticket page and links straight to tickets; lineups change, so the club’s page is the final word. Want to get up yourself? Open mics in Houston.