I haven't been to a drive in movie in 30 years. Wish our town had one.It's about a hundred miles from Bristol to Pigeon Forge, but it's the big show. You'll find all you're looking for and more, just pricey. Wetlands is old and dumpy but it's close and cheap. There are minor league ball teams in Bristol,Johnson City,Greeneville and Kingsport. There are some pretty good museums and a fossil site in Gray,TN. There's a drive in movie in Bristol and one in Abingdon,VA.
If you want barbecue find Ridgewoods in Piney Flats, none better.