A TV white space trial at London Zoo marks the latest phase of Ofcom's project to introduce new wireless technology in the UK.
Using radio spectrum that exists in between frequency bands, live footage of animals is being streamed onto the web via YouTube.
Ofcom wants to use white space to support new wireless applications, as it looks to cope with growing network pressures and demand for data.
The regulator is currently testing how this might be put into practice via a number of pilot schemes across Britain.
Ongoing trials involve flood defence testing in Oxfordshire, next-generation Wi-Fi and city sensing in Scotland, and the use of broadband technology on boats and ships.
Following completion of the trials, testing and policy development, Ofcom hopes to be able to roll the technology out during 2015.
Philip Marnick, Group Director of Ofcom's Spectrum Policy Group, said that, in a world where consumers' demand for data services is experiencing huge growth, it is "essential" to find the most efficient ways to share the airwaves.
"White space technology could be one way of meeting this demand," he stated.
"These trials are an important first step in Ofcom understanding whether white space can be used in other spectrum bands."