NBC had a couple of great “Must See TV” Thursday lineups.
The Cosby Show / Family Ties / Cheers / Night Court
Mad About You / Wings / Seinfeld / FrasierFriends / Seinfeld was hard to beat but there were never good shows in the other two slots.
You’re forgetting The Office / Parks and Recreation / 30 Rock / Community. Best comedy lineup of the last decade.
They still have the best comedy line up on network TV right now (though that’s a very low bar) because of The Good Place and Superstore.