| Abbreviation | Definition |
|---|---|
| CTN | College Television Network |
| CTN | Coming Together News |
| CTN | Cyclone Televison Network |
| CTNS | Capitol Television News Service |
| CTP | Cartoon Television Program |
| CTR | Canadian Thamil Radio |
| CTR | Coffee Time Romance |
| CTRE | Career and Technical Resource Educator |
| CTRI | Creative Television of Rhode Island |
| CTRYLifeAM | Country Life in America (magazine) |
| CTS | Community Television Station |
| CTS | Crossroads Television System |
| CTSN | Clemson Tigers Sports Network |
| CTV | Canadian Television Network |
| CTV | Colour Television |
| CTVC | Churches Television Centre |
| CTVN | Cornerstone TeleVision Network |
| CTW | Children's Television Workshop |
| CU | Close Up |
| CUB | Council for UHF Broadcasting |