I found myself remembering that announcer Garry Owens offered a different meaning for the acronym NBC each week during the opening credits of Rowan and Martin’s Laugh-In, starting in the fourth season. Since I couldn’t find anyplace on the Internet that collected these gags, I have collected some of them here, credited by season and episode.
5.24
Near Breaking Condition network
5.23
Narrowly-Beating-Catastrophe Network
5.22
Not-Basically-Concentrating Network
5.21
Nobody Bothers Caring network
5.20
Nearly Begging Cash network
5.19
Now Becoming Confused network,
5.18
Never Been Copied Network
5.17
Nielsen's Better Climb Network
5.16
Nutty But Careful Network
5.15
The Naive But Curious Network
5.14
Never Been Cornered network
5.13
Nifty Bundle Of Cash Network
5.12
Nice Before Christmas network
5.11
Normal But Crazy network,
5.10
Nervous But Committed Network,
5.9
Nameless But Conspicuous Network
5.8
Not Bad Crowd
5.7
Nimble But Clumsy network
5.6
Nervy But Cautious Network
5.5
Nobody Basically Cares
5.3
Nation Bourbon Company
5.2
Nice, Big Commercials Network
5.1
Now Be Careful Broadcasters