Looking the 2016-2022 seasons, at the 24 (might have missed 1 or 2) ESPN 2/U/3/+ games (20 playoff, @ ECU, @ NC State, @ Weber, MTSU) 17 were between 3:00 and 3:29, with the 4 longest mentioned 3 posts above. (2021 @ Weber stats were jacked up, saying the game was 15 hrs/48 min and didn't end till the next morning lol) The only 5 under 3 hours:
2:57 2019 quarterfinals UNI
2:55 2018 @ Colgate
2:55 2021 spring quarterfinals N Dakota
2:53 2019 semis Weber
2:49 2021 semis @ NDSU (running clock )
Avg of the 2 doz ESPN games was about 3:09 hrs. Don't think the ones televised on other networks averaged less. Maybe a few minutes.
Looking at non televised games (linear or streaming), count 13 between 2016-2019. Last non televised home game was 2017 UNH. Avg was 2:54. Only 1 not under 3 hours, 2016 Morehead St at 3:10, but that was an 80-7 game.
Ironically the 2 shortest games over the last 6 seasons, listed 3 posts above, were listed as televised. 2021 @ RU, (2:30, NBC Sports Washington), and 2018 @ VU (2:34, Fox College Sports).
So the last 6 seasons the JMU ESPN televised have avg 3:09 hrs, non televised 2:54 hrs. I would have thought the difference would have been bigger than 15 min.