Technically, we went to Terry Blacks, not the Original Blacks, but they're the same family and supposedly the meats are essentially the same.
The beef rib looked amazing, but also huge and more difficult to share with my kids. We have been in San Antonio the past few days, but we're flying home from Austin tomorrow and may have time to get some BBQ before heading to the airport.
if you have time, take your kids to Torchy's Tacos. It's a chain of Tex-Mex fromm Austin but they are all over TX. They have awesome tacos, and make sure you get the hillbilly queso with the chorizo. We just got one in St. Pete here in FL, and I love that place.
Ask for the secret menu -- there are a few tacos on there worth getting.
Do not get BBQ at the Austin airport -- it's (frank)ing disappointing.