Broadband subscribers are being invited to register for the upcoming public trial of the YouView IPTV service.
UK consumers can now sign up to take part in the customer pilot of the broadband-connected TV service, which is set to launch later in 2012.
At present, 100 staff from the joint venture partners are testing the system, but YouView is seeking another 2,200 trialists for the next phase.
In order to take part, consumers must be 16 years or older, resident in the UK, possess a valid television licence and have a solid broadband connection.
Households must also have an aerial capable of receiving Freeview programming and agree to the terms and conditions of the YouView service.
These include a Non-Disclosure Agreement which means trialists are prohibited from talking about their experiences.
YouView is a partnership between broadband providers BT and TalkTalk, and other broadcasters and manufacturers including BBC, ITV, Channel 4, Five and Arqiva.