What do you think it is about this show that made it so iconic and rewatchable? I think it's because there was a heavy emphasis on the quality of writing

Inside No. 9 is a British black comedy anthology series, written by Reece Shearsmith and Steve Pemberton. Each episode is a self-contained story with new characters and a new setting, and all star at least one (usually both) of Shearsmith and Pemberton.