| Omid Javedan | US | religious |
| Omid e Iran TV | US | entertainment |
| Omkar TV | NP | culture |
| Omni Television | CA | general |
| Omroep Almere | NL | general |
| Omroep Berg en Dal | NL | general |
| Omroep Best | NL | general |
| Omroep Bollenstreek | NL | general |
| Omroep Brabant | NL | general |
| Omroep Brabant Radio | NL | general |
| Omroep Centraal TV | NL | general |
| Omroep Dommelland | NL | general |
| Omroep Flevoland | NL | general |
| Omroep Gelderland | NL | general |
| Omroep Hoeksche Waard | NL | general |
| Omroep Horst aan de Maas | NL | general |
| Omroep Hulst | NL | general |
| Omroep Land van Cuijk | NL | general |
| Omroep Lingewaard | NL | general |
| Omroep Meierijstad | NL | general |
| Omroep Ons West Brabant | NL | general |
| Omroep P&M | NL | general |
| Omroep Peelrand | NL | general |
| Omroep RSH | NL | general |
| Omroep Sudwest | NL | general |
| Omroep Tilburg | NL | general |
| Omroep Venlo | NL | general |
| Omroep Venray | NL | general |
| Omroep Vlaardingen | NL | general |
| Omroep West | NL | general |
| Omroep Zeeland | NL | general |
| Omrop Fryslan | NL | general |
| On 6 | TR | general |
| On Drama | EG | series |
| On E | EG | news |
| On Medya TV | TR | news |
| On TV | IN | general |
| On The Case | US | documentary |
| On4 TV | TR | general |
| OnC.2 | MX | general |
| OnDemandChina | US | entertainment |
| OnDirecTV | US | general |
| OnSortir.tv | ES | culture |
| OnStyle | KR | general |
| OnTV4U | US | shop |
| OnTime Sports | EG | sports |
| OnTime Sports 2 | EG | sports |
| OnTime Sports 3 | EG | sports |
| Once Internacional | MX | education |
| Once Ninas y Ninos | MX | education, kids |
| Oncu TV | TR | general |
| Onda 15 TV | ES | music, news |
| Onda Algeciras | ES | general |
| Onda Cadiz | ES | general |
| Onda Gran Canaria | ES | general |
| Onda Madrid | ES | general |
| Onda Mezquita | ES | general |
| Onda Novara TV | IT | general |
| Onda Radio | CL | music |
| Onda TV | DO | general |
| Onda TV | IT | general |
| Onda TV | PE | general |
| Onda Valencia TV | ES | music, news |
| Ondambiental TV | CO | music, culture |
| Ondas Quevedenas TV | EC | general |
| One | CA | lifestyle |
| One | DE | entertainment |
| One | MT | general |
| One 2 | IL | sports |
| One 31 | TH | general |
| One Accord TV | KE | religious |
| One Adria | DE | music |
| One Africa TV | NA | general |
| One Albuquerque Media | US | general |
| One America News Network | US | news |
| One Caribbean Television | US | culture |
| One Channel | GR | general |
| One Channel Cyprus | CY | general |
| One Doco | IL | general |
| One Edge | IL | general |
| One Ghana TV | GH | entertainment |
| One Golf | PK | sports |
| One Gospel | ZA | religious |
| One HD | GH | entertainment |
| One Media Network | PH | news, entertainment |
| One Movies | EG | movies |
| One Music Television | DE | music |
| One Nation TV | SN | culture |
| One News | MM | news |
| One News | PH | news |
| One PH | PH | news |
| One Paschima | IN | entertainment |
| One Piece | US | animation |
| One Planet | UA | general |
| One Screen | PH | entertainment |
| One Sports | PH | sports |
| One Sports+ | PH | sports |
| One TV | CH | general |
| One TV | DZ | entertainment |
| One TV | IN | entertainment |
| One TV | LB | music |
| One TV Cinema 2 | KH | movies |
| One TV Discovery 6 | KH | general |
| One TV Drama 3 | KH | series |
| One TV E-School Cambodia | KH | education |
| One TV Kids 5 | KH | kids |
| One TV Movies 7 | KH | movies |
| One TV Music 8 | KH | music |
| One TV Sabay 1 | KH | general |
| One TV Sports 11 | KH | sports |
| One TV Sports 9 | KH | sports |
| One Television | SE | general |
| One Way TV | FI | religious |
| One tv | TG | general |
| OneFM | LB | music |
| OneRadio TV | AR | music |
| OneTV | HK | general |
| OneZed | ZA | general |
| Onkar News | IN | news |
| Onkar Only Truth TV | IN | news |
| Online Media TV 69 | TH | general |
| Online TV Nusantara | ID | general, music, news, culture |
| Only Bharat | IN | news |
| Only Films TV | SR | movies |
| Onni TV | FI | general |
| Onse TV | ZA | general |
| Ontario Hockey League | CA | sports |
| Ontario Parliamentary Network | CA | legislative |
| Ontario Public Access Channel | US | general |
| Ontustik | KZ | general |
| Onua TV | GH | general |
| Onza TV | VE | general |
| Oorah TV | US | religious |
| Opap Powerspin | GR | sports |
| Opcion TV | US | general |
| Open Learning TV | BZ | education |
| Open Stage Media Arts and Media | US | culture |
| Open Stage Media Government | US | legislative |
| Open Stage Media Public Access | US | general |
| Open TV | GR | general |
| OpenShop | AU | shop |
| Opiniao Play TV | BR | general |
| Opinionsur | CL | news |
| Oplot 2 | RU | general |
| Oplot TV | RU | news |
| Oppna Kanalen Goteborg | SE | general |
| Oppna Kanalen Hoglandet | SE | general |
| Oppna Kanalen Kronoberg | SE | general |
| Oppna Kanalen Narke | SE | general |
| Oppna Kanalen Skovde | SE | general |
| Oppna Kanalen Stockholm | SE | general |
| Optus Sport 1 | AU | sports |
| Optus Sport 10 | AU | sports |
| Optus Sport 11 | AU | sports |
| Optus Sport 12 | AU | sports |
| Optus Sport 2 | AU | sports |
| Optus Sport 3 | AU | sports |
| Optus Sport 4 | AU | sports |
| Optus Sport 5 | AU | sports |
| Optus Sport 6 | AU | sports |
| Optus Sport 7 | AU | sports |
| Optus Sport 8 | AU | sports |
| Optus Sport 9 | AU | sports |
| Or Hachaim | IL | religious |
| Ora News | AL | news |
| Ora TV | AL | general |
| Oracle TV | KE | religious |
| Oracle TV | NG | religious |
| Orange Bangla TV | IN | music |
| Orange Government Access TV | US | legislative |
| Orange TV | US | legislative |
| Orange TV3 | US | general |
| Orange Television Network | US | education |
| Oras ng Himala | PH | religious |
| Orbita Chile TV | CL | movies, music |
| Orbita FM | SV | music |
| Orbita Plus | CL | movies, music |
| Orbita TV | SV | news |
| Orbita TV | UA | general |
| Oregon City Government Channel | US | legislative |
| Oriental CJ Shopping 11 | CN | shop |
| Oriental CJ Shopping 12 | CN | shop |
| Oriental Financial | CN | business |
| Oriental TV | DO | general |
| Oriental TV | PE | general |
| Oriente Television | HN | general |
| Origen Channel | CO | culture |
| Origen TV | CL | general |
| Originales por Movistar Plus+ | ES | movies |
| Orisun TV | NG | general |
| Orizont TV | MD | general |
| Orizont TV | RO | music |
| Orleans Channel 18 | US | legislative |
| Orler TV | IT | culture |
| Oro Oro TV | CO | general |
| Oromar TV | EC | general |
| Oromar TV+ | EC | general |
| Oromia 11 | US | general |
| Oromia Broadcasting Service | ET | general |
| Oromia Clergy Network | ET | religious |