VIDEO : 'Arrow' Premiere Ratings Down In New Time Slot

The season premiere of Arrow drew a 0.6 share and 1.6 million viewers last night.The numbers are down slightly from last season's premiere. Last year, the series opened with a 0.7 share and 1.9 million viewers. Ratings for The CW's superhero shows have been down for the most part. Arrow moved to Thursday nights at 9 p.m. after five seasons in the Wednesdays-at-8 slot. Meanwhile, its Wednesday night replacement, Riverdale, soared to a series high.