This is definitely a legit Steelers Bar. They even have huge Steelers logos painted on the side of their black and gold building!
Oscar’s 4101 Hwy 17 South in North Myrtle Beach South Carolina is a Steelers bar they even have Iron City 843-272-0707
A review on myrtlebeachscrestaurants.com says:
Oscars Rocks on all levels! Best place to watch a game outside of Heinz Field! Die hard born and raised in the Burgh Steelers fan. And for the previous review, real fans get there EARLY for the game! Oscars packs the Black N Gold in!
Note: we could not find their website