Well, all in all, it hasn't been a fantastic year, NBC have probably have had the best year bar Voice dropping like a fly and the huge decline of Blindspot.
Here IMO are the successful stories of 2015-2016 season
CBS:
Life in Pieces- Consistent performer.
Criminal Minds Beyond Borders
- Along with older consistent hit, Big Bang, Mom, NCIS, 2 Broke Girls and Criminal Minds
Not sure- Code Black, Supergirl.
ABC:
Ermmm.... Dr Ken? Quantico?
Not sure/not at all- Everything else
- Along with the powerhouse of Greys.
NBC:
Chicago Med
Superstore
Little Big Shots
- Along with hits.... Chicago Fire, Chicago PD, Law and Order, The Blacklist.
FOX:
Lucifer
- Along with Gotham and HUGE Empire.
CW:
Legends of Tomorrow
iZombie
- Along with Supernatural, The Flash, Arrow and The 100.
Basically ABC have had a crappy year for freshmen shows, and FOX only has Lucifer. NBC have done the best with new shows and the reliables on the network. CW have done well too. CBS hasn't had it bad either.