Harold Night Your one-stop shop to see UCB’s house improv ensembles perform every Tuesday!

Harold Night is a recurring live comedy event at UCB Theatre, a New York City venue closely associated with the city’s modern improv lineage. The program features UCB house improv ensembles performing long-form sets built in real time, using the “Harold” structure as a loose organizing principle. In a town where stand-up often dominates the conversation, this format foregrounds group authorship and shared listening. Its cultural significance is local and practical: a steady proving ground that has helped define contemporary NYC improv standards.