I just noticed this thread, and, especially since I always fly Delta via Atlanta when I go anywhere, I just had to provide a little input.
LIT-ATL (DL 254) Arr. A04
ATL-TYS (DL 2041) Dep. B31
TYS-ATL (DL 1069) Arr. B03
ATL-LIT (DL 1663) Dep. A33
Gate numbers may change, but the concourse generally doesn't.
OK, that looks pretty good -- It looks as though you'll have to change concourses, but only to an adjacent concourse, so you should have plenty of time. As already mentioned, listen for the connecting gate assignments that are announced toward the end of the flights. And of course, have fun!