A TV aerial plug is a connector used to connect coaxial cables with each other and with terrestrial VHF/UHF roof antennas, antenna signal amplifiers, CATV distribution equipment, TV sets and FM / DAB-radio receivers.

Belling-Lee connectors
Flex Type F connectors

In Europe and Australia the Belling-Lee connector (IEC 61169-2 radio-frequency coaxial connector of type 9,52) is commonly used for this purpose.

In other parts of the world the F connector is most commonly used.

The plugs were used for (outdated) analog TVs, but also for modern digital (smart) TVs, except not needed when non-broadcast TV is used, i.e. such as Netflix or other streaming services.