A number of WB and CW shows have been structured to include venues for bands to perform, sometimes having main characters buy and manage nightclubs, e.g. Piper on Charmed
and Lana on Smallville
. Now Arrow
has Oliver Queen building a nightclub above his secret crimefighting lair, which is somehow supposed to help conceal his secret identity. And for like the first third of the season they were evidently obligated to include a nightclub or rave scene in virtually every episode.