Phantom Channel - Alcatel describes "Phantom Mode" as "the creation of a virtual or 'phantom' channel that supplements the two physical wires that are the standard configuration for copper transmission lines."
https://informitv.com/news/2010/04/21/broadbandovercopper

Ad-supported Broadband Channel

Back Channel - (a.k.a., Backchannel, Return Channel, Reverse Channel, Return

Channel Browser - (Interactive Channel Browser)

Favorite Channel Selection – (FAV)


Fibre Channel (Associated with Fibre Channel Protocol, FCP)


Interactive Channel Browser - (Channel Browser)

Internet Channel - (Internet Video Channel)

Return Channel Terrestrial


Return Path, Back Channel, Backchannel, Return Channel, Return Link

The Interactive Channel


Web Channel - (Internet Channel, Internet TV)



See the Interactive Television Institute.