 AUSTIN, Texas, July 27, 2021 PRNewswire -- Lamar Advertising, one of the largest out-of-home OOH advertising companies in the world, and Grocery TV, a digital out-of-home DOOH advertising company in grocery retail, have partnered to package their premium inventories, so that advertisers can activate simultaneously in grocery stores and large-format billboards through a singular PMP Private Marketplace deal. The goal of the partnership is to make it easy for brands to reach audiences throughout their daily routines, such as on their drive to work or while theyre running errands in stores, in major DMAs including Los Angeles, Phoenix, and Dallas-Fort Worth. 