Brooklyn Nine-Nine - 21 mins https://trakt.tv/shows/brooklyn-nine-nine/seasons/7
The Office - 22 mins https://trakt.tv/shows/the-office/seasons/9
M.A.S.H - 24 mins https://trakt.tv/shows/m-a-s-h/seasons/10
Golden Girls - 24 mins https://trakt.tv/shows/the-golden-girls/seasons/1
Cheers - 24 mins https://trakt.tv/shows/cheers/seasons/10
Miami Vice (1984): 48m
Homicide Life On The Streets (1993): 47m
TekWar (1994): 45m
Nowhere Man (1995): 45m
Battlestar Galactica (2003): 44m
Dark Matter (2015): 43m
12 Monkeys (2015): 43m
Lucifer (2015): 43m
There are exceptions though. Legion (2017) episodes are around 50m, and several of the newer "made for streaming" shows have 50-60m episodes.
A-Team (1983): 49m
MacGyver (1985, original): 48m
Quantum Leap (1989): 47-48m
X-Files (1993): 43-44m
Monk (2002): 44m
Eureka (2006): 44m
MacGyver (2016, remake): 42-43m