From mtburb on the Michigan Buzzboard:
http://www.mibuzzboard.com/phpBB3/viewtopic.php?p=553116#p553116
Anyone who may have lived in or visited central Ohio in the late 70's may remember QUBE, which spawned several elements now common in modern cable systems and also helped lay the footprint for what is now Charter Spectrum.
QUBE, Columbus headend, December 1977 (the entire P tier was the predecessor of The Movie Channel)
T-1-program guide
T-2-WOSU (PBS)
T-3-reserved for signals of out-of-market affiliates when Columbus network affiliates preempted network programming
T-4-WCMH (NBC)
T-5-WTTV (Independent, Indianapolis)
T-6-WTVN (ABC)
T-7-WXIX (Independent, Cincinnati)
T-8-WOUB (PBS, Athens)
T-9-WUAB (Independent, Lorain)
T-10-WBNS (CBS)
C-1-Columbus Alive
C-2-consumer information
C-3-Pinwheel (predecessor of Nickelodeon)
C-4-news updates
C-5-sports news & scores
C-6-stocks & business news
C-7-religious programming
C-8-time & weather
C-9-selected audience programming
C-10-Live and Learn
P-1-free program previews
P-2-First-Run Movies
P-3-Movie Greats
P-4-Performance
P-5-Better Living
P-6-sports
P-7-special events
P-8-QUBE Games
P-9-College at Home
P-10-adult films
http://www.mibuzzboard.com/phpBB3/viewtopic.php?p=553116#p553116