Another issue was that the "98.5 per cent of the population" availability target could only be achieved "via rooftop aerials", while Section 134 of the Communications Act 2003 sets out the principle "that no person should unreasonably be denied access to an electronic communications network or to electronic communications services". This is taken to mean that everyone has the right to mount a television aerial on their roof. Ofcom allocated frequencies for groups of households to provide "self-help" relay transmitters at their own expense (for analogue broadcasts there were some 200 of these, serving around 13,000 households), but suggested that in such cases, terrestrial TV may no longer be the most cost-effective solution.