Toronto's oldest and most famous comedy venue is still the best place in town to take in an evening of sketch comedy. A venue change in 2006 took the venerable establishment back to its 1973 roots: it is now a smaller, more casual 300-seat club where you can dress casually. The main productions are loosely linked sketches with an underlying theme, packaged under pithy titles like Bird Flu Over the Cuckoo's Nest. Shows run seven nights a week and members of the audience can stick around to watch the same performers hone their improvisation skills. The resident comedians use these free improv sets, which start around 10pm, to develop material for the next big show. Robin Williams has been known to stop by to keep his stand-up chops in shape. Photos of Second City alumni, including Dan Aykroyd, Eugene Levy, Dave Thomas, Martin Short, Gilda Radner and John Candy, line the halls. Those early greats created the seminal TV show SCTV, a popular spoof from the early 1980s.