Yes, I'm the guy who wrote TIBBS, the first BBS for the TI99/4A Home Computer way back in the early 1980s
Here is some archived publicity about the program I wrote (look about halfway down the page) And some more here And for you former SysOPs, here is a scan of the operator manual. Cover Pages 1 & 2 Pages 3 & 4 Pages 5 & 6 Pages 7 & 8 Pages 9 & 10 Pages 11 & 12 Pages 13 & 14 Pages 15 & 16 Pages 17 & 18 Page 19