all you had to do was look a wee bit further down the least of recent posts :) i have compiled longest streaks data for many years, as well as all kinds of dynasty and conference dynasty rankings for teams and conferences. in the thread i am linking are longest runs for NT appearances to every round of the NT, for each division (most consecutive NT appearances, most s16s, most final 4s, etc). the first post of that thread (and every similar thread) is a link to the dynasty list index page which links to all the dynasty list stuff i've done. however it does not contain the most recent dynasty lists (from christmas day) because coach_billyg doesn't have posting rights right now. waiting for seble to put them back so i can update. just go to like page 4 of the recent forum threads and you'll see them all if interested.
anyway here is the HD all time longest streaks thread:
https://www.whatifsports.com/forums/Posts.aspx?TopicID=490640&TopicsTimeframe=30&TopicsPage=3