If you're a fan of live theater productions, book yourself a seat for a play or other stage show at Keighley Playhouse. Look online for scheduling details.
You're spoiled for sightseeing choice when in Keighley. Keighley Playhouse is an ideal place to start here, but there are lots of other worthwhile attractions to consider. Bronte Parsonage Museum, Salts Mill, and East Riddlesden Hall are near the arts and culture attraction and will fill in your day nicely.